chg: Update ReadTheDocs links !cosmetic

Thanks to @adamchainz for the update

Author: acdha

.github/pull_request_template.md

@@ -1,3 +1,3 @@
-# Hey, thanks for contributing to Haystack. Please review [the contributor guidelines](http://django-haystack.readthedocs.org/en/latest/contributing.html) and confirm that [the tests pass](http://django-haystack.readthedocs.org/en/latest/running_tests.html) with at least one search engine.
+# Hey, thanks for contributing to Haystack. Please review [the contributor guidelines](https://django-haystack.readthedocs.io/en/latest/contributing.html) and confirm that [the tests pass](https://django-haystack.readthedocs.io/en/latest/running_tests.html) with at least one search engine.
 
 # Once your pull request has been submitted, the full test suite will be executed on https://travis-ci.org/django-haystack/django-haystack/pull_requests. Pull requests with passing tests are far more likely to be reviewed and merged.

CONTRIBUTING.md

@@ -48,7 +48,7 @@ should take to help get it added/fixed in Haystack:
   https://github.com/blog/1943-how-to-write-the-perfect-pull-request
 
   Instructions for running the tests are at
-  http://django-haystack.readthedocs.org/en/latest/running_tests.html
+  https://django-haystack.readthedocs.io/en/latest/running_tests.html
 
 You might also hop into the IRC channel (`#haystack` on `irc.freenode.net`)
 & raise your question there, as there may be someone who can help you with a

README.rst

@@ -33,13 +33,13 @@ Documentation
 =============
 
 * Development version: http://docs.haystacksearch.org/
-* v2.4.X: http://django-haystack.readthedocs.org/en/v2.4.1/
-* v2.3.X: http://django-haystack.readthedocs.org/en/v2.3.0/
-* v2.2.X: http://django-haystack.readthedocs.org/en/v2.2.0/
-* v2.1.X: http://django-haystack.readthedocs.org/en/v2.1.0/
-* v2.0.X: http://django-haystack.readthedocs.org/en/v2.0.0/
-* v1.2.X: http://django-haystack.readthedocs.org/en/v1.2.7/
-* v1.1.X: http://django-haystack.readthedocs.org/en/v1.1/
+* v2.4.X: https://django-haystack.readthedocs.io/en/v2.4.1/
+* v2.3.X: https://django-haystack.readthedocs.io/en/v2.3.0/
+* v2.2.X: https://django-haystack.readthedocs.io/en/v2.2.0/
+* v2.1.X: https://django-haystack.readthedocs.io/en/v2.1.0/
+* v2.0.X: https://django-haystack.readthedocs.io/en/v2.0.0/
+* v1.2.X: https://django-haystack.readthedocs.io/en/v1.2.7/
+* v1.1.X: https://django-haystack.readthedocs.io/en/v1.1/
 
 See the `changelog <docs/changelog.rst>`_
 
@@ -58,5 +58,5 @@ Haystack has a relatively easily-met set of requirements.
 * A supported version of Django: https://www.djangoproject.com/download/#supported-versions
 
 Additionally, each backend has its own requirements. You should refer to
-http://django-haystack.readthedocs.org/en/latest/installing_search_engines.html for more
+https://django-haystack.readthedocs.io/en/latest/installing_search_engines.html for more
 details.

docs/index.rst

@@ -15,13 +15,13 @@ Elasticsearch_, Whoosh_, Xapian_, etc.) without having to modify your code.
 
     This documentation represents the current version of Haystack. For old versions of the documentation:
 
-    * v2.4.X: http://django-haystack.readthedocs.org/en/v2.4.1/
-    * v2.3.X: http://django-haystack.readthedocs.org/en/v2.3.0/
-    * v2.2.X: http://django-haystack.readthedocs.org/en/v2.2.0/
-    * v2.1.X: http://django-haystack.readthedocs.org/en/v2.1.0/
-    * v2.0.X: http://django-haystack.readthedocs.org/en/v2.0.0/
-    * v1.2.X: http://django-haystack.readthedocs.org/en/v1.2.7/
-    * v1.1.X: http://django-haystack.readthedocs.org/en/v1.1/
+    * v2.4.X: https://django-haystack.readthedocs.io/en/v2.4.1/
+    * v2.3.X: https://django-haystack.readthedocs.io/en/v2.3.0/
+    * v2.2.X: https://django-haystack.readthedocs.io/en/v2.2.0/
+    * v2.1.X: https://django-haystack.readthedocs.io/en/v2.1.0/
+    * v2.0.X: https://django-haystack.readthedocs.io/en/v2.0.0/
+    * v1.2.X: https://django-haystack.readthedocs.io/en/v1.2.7/
+    * v1.1.X: https://django-haystack.readthedocs.io/en/v1.1/
 
 Getting Started
 ---------------

docs/running_tests.rst

@@ -39,7 +39,7 @@ list of possible options::
     cd test_haystack
     ./run_tests.py --help
 
-.. _nose: https://nose.readthedocs.org/en/latest/
+.. _nose: https://nose.readthedocs.io/en/latest/
 
 Configuring Solr
 ================

test_haystack/solr_tests/test_solr_backend.py

@@ -447,7 +447,7 @@ def test_spatial_search_parameters(self):
                                              sort_by='distance asc')
 
         # Points in Solr are lat, lon pairs but Django GIS Point() uses lon, lat so we'll check for the flip
-        # See http://django-haystack.readthedocs.org/en/latest/spatial.html#points
+        # See https://django-haystack.readthedocs.io/en/latest/spatial.html#points
         self.assertEqual(kwargs.get('pt'), '4.56,1.23')
         self.assertEqual(kwargs.get('sfield'), 'location')
         self.assertEqual(kwargs.get('sort'), 'geodist() asc')