Updated 'support and tickets' link in README to the new github repo

Author: smartinez87

README

@@ -76,6 +76,6 @@ If you are running pre-rack Rails then see this tag:
 
 == Support and tickets
 
-https://rails.lighthouseapp.com/projects/8995-rails-plugins
+https://github.com/smartinez87/exception_notification/issues
 
-Copyright (c) 2005 Jamis Buck, released under the MIT license
+Copyright (c) 2005 Jamis Buck, released under the MIT license