Update 02_return_values.rst

minor doc typo fix

docs/02_return_values.rst

@@ -28,7 +28,7 @@ and everything will work as intended. The class used for this is exposed as
 Since version 2.0.0, Mastodon.py is fully typed - there are now classes for all
 return types, and all functions have type hints. Note that the base class is still
 the AttribAccessDict - this means that you can still access all returned values as 
-attributes, `even if a type does not define them.`. Lists have been split into lists
+attributes, `even if a type does not define them`. Lists have been split into lists
 that can be paginated (i.e. that have pagination attributes) and those that cannot.
 
 All return values can be converted from and to JSON using the `to_json()` and `from_json()`
@@ -412,3 +412,4 @@ Deprecated types
 .. autoclass:: mastodon.return_types.IdentityProof
    :members:
 
+