Added the link to documentation for a better experience (#409)

* Added a link to the documentation, as code snippets are not being rendered properly

* Added Changelog

* Changed the branch name from master to main

* changes added to changelog

* Simplified the documentation LINK

---------

Co-authored-by: Kushal Gajurel <kushal.gajurel@renegadeinsurance.com>

doc/source/index.rst

@@ -10,6 +10,8 @@ Tenacity
    :target: https://mergify.io
    :alt: Mergify Status
 
+**Please refer to the** `tenacity documentation <https://tenacity.readthedocs.io/en/latest/>`_ **for a better experience.**
+
 Tenacity is an Apache 2.0 licensed general-purpose retrying library, written in
 Python, to simplify the task of adding retry behavior to just about anything.
 It originates from `a fork of retrying
@@ -622,7 +624,7 @@ Contribute
 #. Check for open issues or open a fresh issue to start a discussion around a
    feature idea or a bug.
 #. Fork `the repository`_ on GitHub to start making your changes to the
-   **master** branch (or branch off of it).
+   **main** branch (or branch off of it).
 #. Write a test which shows that the bug was fixed or that the feature works as
    expected.
 #. Add a `changelog <#Changelogs>`_

releasenotes/notes/added_a_link_to_documentation-eefaf8f074b539f8.yaml

@@ -0,0 +1,5 @@
+---
+other:
+  - |
+    Added a link to the documentation, as code snippets are not being rendered properly
+    Changed branch name to main in index.rst