💡 add message docstring

docs_build/README.rst

@@ -5,6 +5,7 @@ NoneBot Api Reference
   - `nonebot <nonebot.html>`_
   - `nonebot.config <config.html>`_
   - `nonebot.plugin <plugin.html>`_
+  - `nonebot.message <message.html>`_
   - `nonebot.matcher <matcher.html>`_
   - `nonebot.rule <rule.html>`_
   - `nonebot.permission <permission.html>`_

docs_build/message.rst

@@ -0,0 +1,11 @@
+---
+contentSidebar: true
+sidebarDepth: 0
+---
+
+NoneBot.message 模块
+======================
+
+.. automodule:: nonebot.message
+   :members:
+   :show-inheritance: