Add translation zh_CN/admin-guide/init.rst, and link it to
zh_CN/admin-guide/index.rst while clean its todo entry.
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: https://lore.kernel.org/r/cd2fd8d0ea2ad50afc6bd2abe15eba73b6c7940c.1616050069.git.bobwxc@email.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>