improve data on author_handle.json files

Updated URLs, Email addresses, GitHub handles,
Mastodon handles, and locations of various IOCCC winning authors.

author/Jonathan_Hoyle.json

@@ -4,8 +4,8 @@
     "author_handle" : "Jonathan_Hoyle",
     "full_name" : "Jonathan Hoyle",
     "sort_word" : "hoyle",
-    "location_code" : null,
-    "location_name" : null,
+    "location_code" : "US",
+    "location_name" : "United States of America",
     "email" : "jonhoyle@mac.com",
     "url" : "http://www.jonhoyle.com",
     "alt_url" : null,