readthedocs.io follow-up to #1074 for docs/

Author: dpkp

docs/compatibility.rst

@@ -2,7 +2,7 @@ Compatibility
 -------------
 
 .. image:: https://img.shields.io/badge/kafka-0.10%2C%200.9%2C%200.8.2%2C%200.8.1%2C%200.8-brightgreen.svg
-    :target: https://kafka-python.readthedocs.org/compatibility.html
+    :target: https://kafka-python.readthedocs.io/compatibility.html
 .. image:: https://img.shields.io/pypi/pyversions/kafka-python.svg
     :target: https://pypi.python.org/pypi/kafka-python
 

docs/index.rst

@@ -2,7 +2,7 @@ kafka-python
 ############
 
 .. image:: https://img.shields.io/badge/kafka-0.10%2C%200.9%2C%200.8.2%2C%200.8.1%2C%200.8-brightgreen.svg
-    :target: https://kafka-python.readthedocs.org/compatibility.html
+    :target: https://kafka-python.readthedocs.io/compatibility.html
 .. image:: https://img.shields.io/pypi/pyversions/kafka-python.svg
     :target: https://pypi.python.org/pypi/kafka-python
 .. image:: https://coveralls.io/repos/dpkp/kafka-python/badge.svg?branch=master&service=github

docs/tests.rst

@@ -24,7 +24,7 @@ Unit tests
 ------------------
 
 To run the tests locally, install tox -- `pip install tox`
-See http://tox.readthedocs.org/en/latest/install.html
+See https://tox.readthedocs.io/en/latest/install.html
 
 Then simply run tox, optionally setting the python environment.
 If unset, tox will loop through all environments.