Merge pull request #10684 from marxin/fix-version-indentation

Fix indentation of .. version{changed,added}.

Author: jfbu

doc/usage/configuration.rst

@@ -723,7 +723,7 @@ General configuration
    This was the behaviour before version 3.0, and setting this variable to
    ``True`` will reinstate that behaviour.
 
-    .. versionadded:: 3.0
+   .. versionadded:: 3.0
 
 .. confval:: option_emphasise_placeholders
 

doc/usage/extensions/autosummary.rst

@@ -323,9 +323,9 @@ The following variables are available in the templates:
    List containing names of "public" attributes in the class/module.  Only
    available for classes and modules.
 
-    .. versionchanged:: 3.1
+   .. versionchanged:: 3.1
 
-       Attributes of modules are supported.
+      Attributes of modules are supported.
 
 .. data:: modules