No idea why it complains about one indentation and not the other here.

docs/creating.rst

@@ -11,31 +11,40 @@ Creating or Extending Validators
     Create a new validator.
 
     :argument dict meta_schema: the meta schema for the new validator
+
     :argument dict validators: a mapping from validator names to functions that
         validate the given name. Each function should take 4 arguments: a
         validator instance, the value of the current validator property in the
         instance being validated, the instance, and the schema. 
+
     :argument str version: an identifier for the version that this validator
         will validate. If provided, the returned validator class will have its
         ``__name__`` set to include the version, and also will have
         :func:`validates` automatically called for the given version.
+
     :argument dict default_types: a default mapping to use for instances of the
         validator when mapping between JSON types to Python types. The default
         for this argument is probably fine. Instances of the returned validator
         can still have their types customized on a per-instance basis.
+
     :returns: an :class:`jsonschema.IValidator`
 
+
 .. autofunction:: extend
 
     Create a new validator that extends an existing validator.
 
     :argument :class:`jsonschema.IValidator` validator: an existing validator
+
     :argument dict validators: a set of new validators to add to the new
         validator. Any validators with the same name as an existing one will
         (silently) replace the old validator entirely.
+
     :argument str version: a version for the new validator
+
     :returns: an :class:`jsonschema.IValidator`
 
+
 .. autofunction:: validates