fix(docs): update djoser link to appropriate version, fixes #112

docs/introduction.rst

@@ -25,7 +25,7 @@ User management is handled via Django's djoser library.  For usage, please
 check the `djoser endpoint documentation`_.
 
 .. _djoser endpoint documentation:
-    https://djoser.readthedocs.io/en/latest/getting_started.html#available-endpoints
+    https://github.com/sunscrapers/djoser/blob/1.1.5/docs/source/getting_started.rst#available-endpoints
 
 Most operations require authentication of the domain owner using a token that
 is returned by djoser's ``token/create/`` endpoint.  To authenticate, this