Update mathspp/Rodrigo Girao Serrao feed. (#600)

Author: rodrigogiraoserrao

config/config.ini

@@ -831,9 +831,6 @@ name = Martijn Pieters
 [https://www.mfitzp.com/feeds/python.tag.atom.xml]
 name = Martin Fitzpatrick
 
-[https://mathspp.com/blog/pydonts.rss]
-name = "Mathspp Pydon'ts"
-
 [http://mysqlmusings.blogspot.se/feeds/posts/default/-/python]
 name = Mats Kindahl
 
@@ -1275,6 +1272,9 @@ name = Robin Wilson
 [http://linil.wordpress.com/feed/atom/]
 name = Rodrigo Araúj
 
+[https://mathspp.com/blog/tags/python.rss]
+name = Rodrigo Girão Serrão
+
 [https://www.rosehosting.com/blog/tag/python/feed/]
 name = RoseHosting Blog