Add loopwerk.io RSS feed for Kevin Renskers

Adds the Python-specific feed from loopwerk.io (Kevin Renskers)
to Planet Python. The feed contains quality Django and Python
content including articles on migrations, async Django, and testing.

Closes #611

Author: matrixise

config/config.ini

@@ -714,6 +714,9 @@ name = Kay Schluehr
 [http://kbyanc.blogspot.com/feeds/posts/default/-/python]
 name = Kelly Yancey
 
+[https://www.loopwerk.io/articles/tag/python/feed.xml]
+name = Kevin Renskers
+
 [https://kodnito.com/python/rss/]
 name = Kodnito