add DataWars.io (#553)

Close #545

Author: matrixise

config/config.ini

@@ -324,6 +324,9 @@ name = Data Community DC
 [https://www.dataschool.io/tag/python/rss/]
 name = Data School
 
+[https://www.datawars.io/articles/rss.xml]
+name = DataWars.io
+
 [http://dabeaz.blogspot.com/feeds/posts/default]
 name = Dave Beazley