Merge branch 'readme-logo' into 'develop'

Readme tweaks / logo

See merge request funkwhale/funkwhale!181

README.rst

 Funkwhale
 =============
 
+.. image:: ./front/src/assets/logo/logo-full-500.png
+  :alt: Funkwhale logo
+  :target: https://funkwhale.audio
+
 A self-hosted tribute to Grooveshark.com.
 
 LICENSE: BSD
@@ -8,13 +12,16 @@ LICENSE: BSD
 Getting help
 ------------
 
-We offer various Matrix.org rooms to discuss about funkwhale:
+We offer various Matrix.org rooms to discuss about Funkwhale:
 
 - `#funkwhale:matrix.org <https://riot.im/app/#/room/#funkwhale:matrix.org>`_ for general questions about funkwhale
 - `#funkwhale-dev:matrix.org <https://riot.im/app/#/room/#funkwhale-dev:matrix.org>`_ for development-focused discussion
 
 Please join those rooms if you have any questions!
 
+You can also contact `@funkwhale@mastodon.eliotberriot.com <https://mastodon.eliotberriot.com/@funkwhale>`_ on the fediverse.
+
+
 Contribute
 ----------