Use https for links to ansible.com domains.

lib/ansible/modules/net_tools/basics/get_url.py

@@ -24,7 +24,7 @@ description:
        the target host, requests will be sent through that proxy. This
        behaviour can be overridden by setting a variable for this task
        (see `setting the environment
-       <http://docs.ansible.com/playbooks_environment.html>`_),
+       <https://docs.ansible.com/playbooks_environment.html>`_),
        or by using the use_proxy option.
      - HTTP redirects can redirect from HTTP to HTTPS so you should be sure that
        your proxy environment for both protocols is correct.