docs/zh_CN: add disclaimer and transtlator info in submit-checklist

Credit the translator and get a way for people to complain.
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
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/translations/zh_CN/process/submit-checklist.rst

+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: :ref:`Documentation/process/submit-checklist.rst <submitchecklist>`
+:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+
 .. _cn_submitchecklist:
 
 Linux内核补丁提交清单