docs/zh_CN: Add subsystem-apis Chinese translation

Translate subsystem-apis.rst into Chinese.

The existence of this document is crucial. Without it, other Chinese
documents included in (such as sched-design-CFS.rst) will not be
displayed correctly in the left side of the web page.

Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20231011152520.31079-1-tangyeechou@gmail.com>

docs: zh_CN: create the architecture-specific top-level directory

This mirrors commit 4f1bb0386dfc ("docs: create a top-level arch/
directory"), creating a top-level directory to hold architecture-specific
documentation.

Acked-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add a glossary of Chinese translation terms

As more and more documents are translated and some English
words are translated into different Chinese, it seems that
we need a glossary of Chinese translation terms.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Tang Yizhou <tangyeechou@gmail.com>
Acked-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20230117093416.2262787-1-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add rust index Chinese translation

Translate .../rust/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/74e20d998bc2825d770c8b4d954e42b0d613ec09.1666959529.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add staging/index Chinese translation

Translate the following files into Chinese:

- Documentation/staging/index.rst

Add it into the menu of zh_CN/index. Also fix one translation
in the zh_CN/index file.

Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Rui Li <me@lirui.org>
Link: https://lore.kernel.org/r/896caff38814b7c383324966c3936e8a0bfb1d2e.1666328379.git.me@lirui.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add userspace-api/index Chinese translation

Translate userspace-api/index.rst into Chinese, add it into
zh_CN/index.rst.

Signed-off-by: Rui Li <me@lirui.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/76b86e687034d5347e1e49c4acfc28e9c45abe47.1666185911.git.me@lirui.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add a man-pages link to zh_CN/index.rst

update to commit 489876063fb1 ("docs: add a man-pages link to the front
page")

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/6e289528ed1b40c1fcc03ea5e854e7c8ba264e67.1665467392.git.bobwxc@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Rewrite the Chinese translation front page

update to commit 0c7b4366f1ab ("docs: Rewrite the front page")

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/440d7cb3c9f1526ed7c2996aa88ba2bc7fdc018c.1665467392.git.bobwxc@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add PCI acpi-info translation

Translate .../PCI/acpi-info.rst into Chinese.
Add PCI into .../zh_CN/index.rst.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/f07ba17ae9c6d728d6135ecc0577a932e9836fba.1662449105.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Update the translation of gpio to 6.0-rc1

Update to commit 5513b411ea5b ("Documentation: rename pinctl to
pin-control")
Move .../zh_CN/gpio.txt to .../zh_CN/driver-api/gpio/legacy.rst
Translate .../driver-api/index.rst into Chinese.
Translate .../driver-api/gpio/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20220817020830.799468-1-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs: rename Documentation/vm to Documentation/mm

so it will be consistent with code mm directory and with
Documentation/admin-guide/mm and won't be confused with virtual machines.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Wu XiangCheng <bobwxc@email.cn>

Documentation/zh_CN: Add basic LoongArch documentations

Add some basic documentation (zh_CN version) for LoongArch. LoongArch is
a new RISC ISA, which is a bit like MIPS or RISC-V. LoongArch includes a
reduced 32-bit version (LA32R), a standard 32-bit version (LA32S) and a
64-bit version (LA64).

Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

docs/zh_CN: Add locking/index Chinese translation

Translate locking/index.rst into Chinese.

Signed-off-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add devicetree index translation

Translate .../devicetree/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/0a01f2eee980da02c0810d3d99b95af9013b646f.1646642188.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add peci index translation

Translate .../pici/index.rst into Chinese

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/9fdba94417277ae20db7e3b13418584c652be93f.1646108017.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/translations: Skip CJK contents if suitable fonts not found

On systems without "Noto Sans CJK" fonts, CJK chapters in
translations.pdf are full of "TOFU" boxes, with a long build time and
a large log file containing lots of missing-font warnings.

Avoid such waste of time and resources by skipping CJK chapters when
CJK fonts are not available.

To skip whole chapters, change the definition of
\kerneldocBegin{SC|TC|KR|JP} commands so that they can have an argument
to be ignored.
This works as far as the argument (#1) is not used in the command.
In place of skipped contents, put a note on skipped contents at the
beginning of the PDF.

Change the call sites in index.rst of CJK translations accordingly.

When CJK fonts are available, existing command definitions with
no argument just work. LaTeX engine will see additional pairs of
"{" and "}", which add a level of grouping without having any effect
on typesetting.

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/3359ca41-b81d-b2c7-e437-7618efbe241d@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add vm/index translation

Translate ../vm/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/60c579b34792c4c76194c4843a695263a982b37d.1641866889.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add power/index Chinese translation

Translate power/index.rst into Chinese.

Signed-off-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20211229024212.32752-3-tangyizhou@huawei.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Cleanup index.rst

Many */index in the Chinese index.rst are not in the same order as the
English version. Put them to where they should be.

Signed-off-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20211229024212.32752-2-tangyizhou@huawei.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

doc/zh_CN: add Chinese document coding style reminder

The coding style requirement for Chinese document is easy to be overlooked.
Add the request as a remdiner.

Signed-off-by: Alex Shi <alexs@kernel.org>
Cc: Yanteng Si <siyanteng01@gmail.com>
Cc: Tang Yizhou <tangyizhou@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20211209095604.68954-1-alexs@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add scheduler index translation

Translate .../scheduler/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/e015c61f64fc0d4d3a49f0e85e925f00df433721.1638777809.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs: pdfdocs: Add CJK-language-specific font settings

zh_TW, ko_KR, and ja_JP translations have their preferred glyph sets
different from that of zh_CN.

To switch CJK font in the middle of the translations, introduce custom
LaTeX macros listed below:

\kerneldocBeginSC
\kerneldocEndSC
\kerneldocBeginTC
\kerneldocEndTC
\kerneldocBeginKR
\kerneldocEndKR
\kerneldocBeginJP
\kerneldocEndJP

, and embed a pair of macros in each language's index.rst.

NOTE 1: Update of zh_TW/index.rst is deferred to a follow-up change.

NOTE 2: Custom macros added here do not imply \kerneldocCJK(on|off).
This is intentional. For example, \kerneldocCJKoff needs to be
at the top of Italian translations' index.rst for the footer of
final zh_TW page to be properly typeset.

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/31906baf-7490-68cd-7153-4e4d320fb9b0@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add zh_CN/accounting/psi.rst

Add translation zh_CN/accounting/psi.rst and zh_CN/accounting/index.rst.

Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20210731084502.571451-1-yang.yang29@zte.com.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add infiniband index translation

Translate Documentation/infiniband/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Puyu Wang <realpuyuwang@gmail.com>
Link: https://lore.kernel.org/r/e3bca9e59f410fe62489e36c5b9a3fab78bc1421.1628218477.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add virt index translation

Add virt to .../zh_CN/index and translate it into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/b28d3a530fe0c3635e7be2462fd14a4ae18f0220.1628212777.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add a translation for index

The original file has added a former intro in commit b51208d41c6a4e7fc2f0
("docs: Tweak the top-level Sphinx page") and hence update the Chinese
version for it.

Signed-off-by: Hu Haowen <src.res@email.cn>
Link: https://lore.kernel.org/r/20210608075207.77812-1-src.res@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs: Activate exCJK only in CJK chapters

Activating xeCJK in English and Italian-translation documents
results in sub-optimal typesetting with wide-looking apostrophes
and quotation marks.

The xeCJK package provides macros for enabling and disabling its
effect in the middle of a document, namely \makexeCJKactive and
\makexeCJKinactive.

So the goal of this change is to activate xeCJK in the relevant
chapters in translations.

To do this:

o Define custom macros in the preamble depending on the
availability of the "Noto Sans CJK" font so that those
macros can be used regardless of the use of xeCJK package.

o Patch \sphinxtableofcontents so that xeCJK is inactivated
after table of contents.

o Embed those custom macros in each language's index.rst file
as a ".. raw:: latex" construct.

Note: A CJK chapter needs \kerneldocCJKon in front of its chapter
heading, while a non-CJK chapter should have \kerneldocCJKoff
below its chapter heading.

This is to make sure the CJK font is available to CJK chapter's
heading and ending page's footer.

Tested against Sphinx versions 2.4.4 and 4.0.2.

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Tested-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/lkml/2061da0a-6ab1-35f3-99c1-dbc415444f37@gmail.com
Link: https://lore.kernel.org/r/83208ddc-5de9-b283-3fd6-92c635348ca0@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add parisc index translation

This patch translates Documentation/parisc/index.rst into Chinese.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/c13ce34b11a65e1f18c4e37566509ead82f2c15f.1620805100.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add translation zh_CN/maintainer/index.rst

Add a new translation
Documentation/translations/zh_CN/maintainer/index.rst
and link it to zh_CN/index.rst

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/224959c4cdcd4c6554035145d5cedcd244887552.1621243426.git.bobwxc@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Adjust order and content of zh_CN/index.rst

Adjust order and content of zh_CN/index.rst to make it clear,
complete introductions and TODOLists.

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20210430122234.GA655@bobwxc.top
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add openrisc translation to zh_CN index

This patch add zh_CN/openrisc to zh_CN/index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/162fb50638028c9b0a92a0ce5c53e691be0cfec2.1618568135.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add core api translation to zh_CN index

This patch add zh_CN/core-api to zh_CN/index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/f23ea90fe88a6ac34d29c6642abe9aceba7ccafb.1618568135.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add translations in zh_CN/dev-tools/gcov

Add new zh translations
* zh_CN/dev-tools/gcov.rst
* zh_CN/dev-tools/index.rst
and link them to zh_CN/index.rst

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/20210415054304.GA26689@bobwxc.top
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Link zh_CN/doc-guide to zh_CN/index.rst

Add zh_CN/doc-guide entry in zh_CN/index.rst

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/8738b39c1b54e15477a937c861f114165a8c0648.1618295149.git.bobwxc@email.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add riscv to zh_CN index

All the files in the riscv directory have been translated into
Chinese and it is time to add them to the zh_CN index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210406070239.19910-9-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add iio to zh_CN index

All the files in the iio directory have been translated into
Chinese and it is time to add them to the zh_CN index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210406070239.19910-8-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add mips to zh_CN index

All the files in the mips directory have been translated into
Chinese and it is time to add them to the zh_CN index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210406070239.19910-7-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: add cpu-freq to zh_CN index

All the files in the cpu-freq directory have been translated into
Chinese and it is time to add them to the zh_CN index.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/20210406070239.19910-6-siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add translations in zh_CN/kernel-hacking/

Add new translations

* Documentation/translations/zh_CN/kernel-hacking/index.rst
* Documentation/translations/zh_CN/kernel-hacking/hacking.rst

And link them to zh_CN/index.rst.

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210323091651.GA23904@mipc
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

PATCH Documentation translations:translate sound/hd-audio/controls to chinese

Signed-off-by: hjh <huangjianghui@uniontech.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210304094556.5858-1-huangjianghui@uniontech.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

doc: zh_CN: index files in arm64 subdirectory

Add arm64 subdirectory into the table of Contents for zh_CN,
then add other translations in arm64 conveniently.

Signed-off-by: Bailu Lin <bailu.lin@vivo.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20200926022558.46232-1-bailu.lin@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

doc/zh_CN: add Chinese translation prefer section

The add words is:

Tranlation plan:
Welcome for any part of kernel doc Chinese translation, expecially for
admin-guide part.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200713115807.56362-3-alex.shi@linux.alibaba.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

doc/zh_CN: add admin-guide index

Translate the admin-guide index.rst file into Chinese. and link it into
Chinese top index file.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200713115807.56362-1-alex.shi@linux.alibaba.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

doc: zh_CN: index files in filesystems subdirectory

Add filesystems subdirectory into the table of Contents for zh_CN,
all translations residing on it would be indexed conveniently.

Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Wang Wenhu <wenhu.wang@vivo.com>
Link: https://lore.kernel.org/r/20200316110143.97848-1-wenhu.wang@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: change Chinese index to know process dir

And add some description translation in index file.

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Coly Li <colyli@suse.de>
Signed-off-by: Weiwei Jia <harryxiyou@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs/zh_CN: Add coding-style into docs build system

Tested by the command:

make htmldocs

During the compiling process, zh_CN/coding-style.rst has no errors and
warnings generated, the generated html document has been checked.

Signed-off-by: Andy Deng <theandy.deng@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>