[README] Update list of contributors
[README] Update list of contributors

Fix links pointing to the API instead of HTML pages

kranack/rss-bridge,simonbru/rss-bridge,sebsauvage/rss-bridge,Frenzie/rss-bridge,Riduidel/rss-bridge,Riduidel/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,Riduidel/rss-bridge,kranack/rss-bridge,ORelio/rss-bridge,ORelio/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,simonbru/rss-bridge,ORelio/rss-bridge,RSS-Bridge/rss-bridge,Frenzie/rss-bridge