Merge pull request #594 from adamchainz/readthedocs.io

Convert readthedocs link for their .org -> .io migration for hosted projects

Changelog

@@ -1923,7 +1923,7 @@ SQS: Now supports long polling (Issue #176).
           as a pure-python replacement in environments where rabbitmq-c cannot
           be compiled.
 
-    .. _`py-amqp`: http://amqp.readthedocs.org/
+    .. _`py-amqp`: https://amqp.readthedocs.io/
 
     If you start using use py-amqp instead of amqplib you can enjoy many
     advantages including:

README.rst

@@ -134,7 +134,7 @@ Documentation
 
 Kombu is using Sphinx, and the latest documentation can be found here:
 
-    http://kombu.readthedocs.org/
+    https://kombu.readthedocs.io/
 
 Quick overview
 --------------

docs/includes/introduction.txt

@@ -129,7 +129,7 @@ Documentation
 
 Kombu is using Sphinx, and the latest documentation can be found here:
 
-    http://kombu.readthedocs.org/
+    https://kombu.readthedocs.io/
 
 Quick overview
 --------------

kombu/__init__.py

@@ -14,7 +14,7 @@ VERSION = version_info = version_info_t(4, 0, 0, 'a1', '')
 __version__ = '{0.major}.{0.minor}.{0.micro}{0.releaselevel}'.format(VERSION)
 __author__ = 'Ask Solem'
 __contact__ = 'ask@celeryproject.org'
-__homepage__ = 'http://kombu.readthedocs.org'
+__homepage__ = 'https://kombu.readthedocs.io'
 __docformat__ = 'restructuredtext en'
 
 # -eof meta-

kombu/transport/zookeeper.py

@@ -18,7 +18,7 @@ This uses the built-in kazoo recipe for queues
 **References**
 
 - https://zookeeper.apache.org/doc/trunk/recipes.html#sc_recipes_Queues
-- https://kazoo.readthedocs.org/en/latest/api/recipe/queue.html
+- https://kazoo.readthedocs.io/en/latest/api/recipe/queue.html
 
 **Limitations**
 This queue does not offer reliable consumption. An entry is removed from