docs/zh_CN: Add index.rst translation
Translate .../usb/index.rst into Chinese and update subsystem-apis.rst
Update the translation through commit
a592a36e4937
("Documentation: use a source-read extension for the index link boilerplate")
Reviewed-by: Yanteng Si <siyanteng@cqsoftware.com.cn>
Signed-off-by: Kefan Bai <baikefan@leap-io-kernel.com>
Link: https://patch.msgid.link/27f8c02f2d78b37dd5d640fbafaa60d0f0ea9c95.1779355170.git.baikefan@leap-io-kernel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>