Add sethmlarson.dev blog (#554)

Thank you for your contribution

Author: sethmlarson

config/config.ini

@@ -1290,6 +1290,9 @@ name = Selena Deckelmann
 [http://feeds.feedburner.com/phoe6pythonfeeds]
 name = Senthil Kumaran
 
+[https://sethmlarson.dev/feed]
+name = Seth Michael Larson
+
 [http://jjinux.blogspot.com/feeds/posts/default/-/python]
 name = Shannon -jj Behrens