docs/README: Add oragono.io link

docs/README

@@ -13,6 +13,7 @@ and use, and to provide the majority of features that IRC users expect today.
 It includes features such as UTF-8 nicks and channel names, client accounts and SASL, and other
 assorted IRCv3 support.
 
+                                      http://oragono.io/
                              https://github.com/DanielOaks/oragono
 
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