docs/zh_CN: Add translation zh_CN/doc-guide/parse-headers.rst

Add new translation
  Documentation/translations/zh_CN/doc-guide/parse-headers.rst

Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/81d98cf80325ff3b1c4145965bc7d05ddb2b3c49.1618295149.git.bobwxc@email.cn


Signed-off-by: Jonathan Corbet <corbet@lwn.net>