Add remove-explicit-return-none to index

Author: dflook

docs/source/transforms/index.rst

@@ -18,6 +18,7 @@ They can be enabled or disabled through the minify function, or passing options
    remove_object_base
    convert_posargs_to_args
    preserve_shebang
+   remove_explicit_return_none
 
 .. toctree::
    :caption: Disabled by default

docs/source/transforms/remove_explicit_return_none.rst

@@ -1,10 +1,8 @@
 Remove Explicit Return None
 ===========================
 
-This transforms any ``return None`` statement into a ``return`` statement.
-A return statement with no value is equivalent to ``return None``.
-
-Removes any ``return None`` or ``return`` statements that are the last statement in a function.
+This transforms any ``return None`` statement into a ``return`` statement, as return statement with no value is equivalent to ``return None``.
+Also removes any ``return None`` or ``return`` statements that are the last statement in a function.
 
 The transform is always safe to use and enabled by default. Disable by passing the ``remove_explicit_return_none=False`` argument to the :func:`python_minifier.minify` function,
 or passing ``--no-remove-explicit-remove-none`` to the pyminify command.