Update maintainer email

Author: marijnh

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others
+Copyright (C) 2017 by Marijn Haverbeke <marijn@haverbeke.berlin> and others
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

index.html

@@ -152,7 +152,7 @@ <h2>Community</h2>
   posted in the
   forum's <a href="https://discuss.codemirror.net/c/announce">"announce"</a>
   category. If needed, you can
-  contact <a href="mailto:marijnh@gmail.com">the maintainer</a>
+  contact <a href="mailto:marijn@haverbeke.berlin">the maintainer</a>
   directly. We aim to be an inclusive, welcoming community. To make
   that explicit, we have
   a <a href="http://contributor-covenant.org/version/1/1/0/">code of

package.json

@@ -5,7 +5,7 @@
   "style": "lib/codemirror.css",
   "author": {
     "name": "Marijn Haverbeke",
-    "email": "marijnh@gmail.com",
+    "email": "marijn@haverbeke.berlin",
     "url": "http://marijnhaverbeke.nl"
   },
   "description": "Full-featured in-browser code editor",