docs: add cross references

README.md

@@ -20,7 +20,8 @@ has a lot of advanced features such as:
 - Prettified tables
 - Embedded images
 
-See more from the [documentations](https://red-mail.readthedocs.io/en/latest/).
+See more from the [documentations](https://red-mail.readthedocs.io/en/latest/)
+or see [release from PyPI](https://pypi.org/project/redmail/).
 
 ## Why Red Mail?
 

docs/index.rst

@@ -2,6 +2,12 @@
 :red:`Red` Mail
 ===============
 
+.. image:: https://badgen.net/pypi/v/redmail
+   :target: https://pypi.org/project/redmail/
+
+.. image:: https://badgen.net/pypi/python/redmail
+   :target: https://pypi.org/project/redmail/
+
 Red Mail is a Python library for sending emails. 
 It makes sending emails a breeze regardless of if 
 you need to include HTML, embed images or tables or
@@ -15,6 +21,9 @@ fix this and it makes sending emails a breeze
 regardless of if you need to include attachments,
 images or prettier HTML.
 
+Visit the `source code from Github <https://github.com/Miksus/red-mail>`_
+or `releases in Pypi page <https://pypi.org/project/redmail/>`_.
+
 
 Why Red Mail?
 -------------