Add pypi package version badge

Author: daneah

README.md

@@ -1,4 +1,4 @@
-# django-webmention
+# django-webmention [![PyPI version](https://badge.fury.io/py/django-webmention.svg)](https://badge.fury.io/py/django-webmention)
 
 webmention for Django projects.
 
@@ -16,4 +16,4 @@ webmention for Django projects.
 * Include webmention information by either:
     * Adding `webmention.middleware.WebMentionMiddleware` to `MIDDLEWARE_CLASSES` (affects all views)
     * Decorating a specific view with `webmention.middleware.include_webmention_information`
-* View webmention responses in the Django admin tool and mark them as reviewed as needed
+* View webmention responses in the Django admin tool and mark them as reviewed as needed

README.rst

@@ -1,5 +1,5 @@
-django-webmention
-=================
+django-webmention |PyPI version|
+================================
 
 webmention for Django projects.
 
@@ -27,3 +27,6 @@ Usage
 
 -  View webmention responses in the Django admin tool and mark them as
    reviewed as needed
+
+.. |PyPI version| image:: https://badge.fury.io/py/django-webmention.svg
+   :target: https://badge.fury.io/py/django-webmention