Adds missing comma to author.json

Author: oalders

conf/authors/M/MA/MARKF/author.json

@@ -10,7 +10,7 @@
     "stackoverflow_public_profile": "http://stackoverflow.com/users/60581/mark-fowler",
     "twitter_username": "2shortplanks",
     "blog_url": "http://blog.twoshortplanks.com/",
-    "blog_feed": "http://blog.twoshortplanks.com/feed/"
+    "blog_feed": "http://blog.twoshortplanks.com/feed/",
     "perlmongers": "London.pm",
     "perlmongers_url": "http://london.pm.org/",
     "website": "http://www.twoshortplanks.com/",