Merge branch 'master' into fix-integer-index

Author: arajkumar

doc/example.rst

@@ -7,7 +7,7 @@ Here is a full example of a `TodoMVC <http://todomvc.com/>`_ API.
 
     from flask import Flask
     from flask_restx import Api, Resource, fields
-    from werkzeug.contrib.fixers import ProxyFix
+    from werkzeug.middleware.proxy_fix import ProxyFix
 
     app = Flask(__name__)
     app.wsgi_app = ProxyFix(app.wsgi_app)

doc/parsing.rst

@@ -249,7 +249,7 @@ and to set the type to :class:`~werkzeug.datastructures.FileStorage`.
             url = do_something_with_file(uploaded_file)
             return {'url': url}, 201
 
-See the `dedicated Flask documentation section <http://flask.pocoo.org/docs/0.10/patterns/fileuploads/>`_.
+See the `dedicated Flask documentation section <https://flask.palletsprojects.com/en/1.1.x/patterns/fileuploads/>`_.
 
 
 Error Handling