Update Reuven Lerner's feed URL (old domain no longer responds) (#638)

Author: reuven

config/config.ini

@@ -771,6 +771,9 @@ name = Lennart Regebro
 [http://leovt.wordpress.com/category/python/feed/atom/]
 name = Leonhard Vogt
 
+[https://lernerpython.com/feed/]
+name = LernerPython blog, from Reuven Lerner
+
 [http://blog.lintel.in/tag/python/feed/]
 name = Lintel Technologies
 
@@ -1266,9 +1269,6 @@ name = Red Hat Developers
 [http://renesd.blogspot.com/feeds/posts/default/-/python]
 name = Rene Dudfield
 
-[http://blog.lerner.co.il/category/python/feed/]
-name = Reuven Lerner
-
 [http://posted-stuff.blogspot.com/feeds/posts/default/-/python]
 name = Richard Tew