Make docs parsing "nitpicky"

docs/conf.py

@@ -66,6 +66,10 @@ rst_prolog = """
 #
 default_role = "any"
 
+# Make the reference parsing more strict
+#
+nitpicky = True
+
 # If true, '()' will be appended to :func: etc. cross-reference text.
 #
 add_function_parentheses = False

docs/intro.rst

@@ -46,7 +46,7 @@ Threads
 
 A thread can refer to two things: A Messenger group chat or a single Facebook user
 
-:class:`models.ThreadType` is an enumerator with two values: ``USER`` and ``GROUP``.
+:class:`ThreadType` is an enumerator with two values: ``USER`` and ``GROUP``.
 These will specify whether the thread is a single user chat or a group chat.
 This is required for many of ``fbchat``'s functions, since Facebook differentiates between these two internally