[core] fix user agent url to rss-bridge github project

Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>

index.php

@@ -54,7 +54,7 @@ if(!extension_loaded('openssl'))
 // FIXME : beta test UA spoofing, please report any blacklisting by PHP-fopen-unfriendly websites
 ini_set('user_agent', 'Mozilla/5.0(X11; Linux x86_64; rv:30.0)
  Gecko/20121202 Firefox/30.0(rss-bridge/0.1;
- +https://github.com/sebsauvage/rss-bridge)');
+ +https://github.com/RSS-Bridge/rss-bridge)');
 
 // default whitelist
 $whitelist_file = './whitelist.txt';