* Create media_player.volumio.markdown
* Update media_player.volumio.markdown
* Update media_player.volumio.markdown
Correct capitalization and formatting of configuration example.
* Update media_player.volumio.markdown
Add yaml syntax highlighting for config example.
* Update media_player.volumio.markdown
Remove optional config variables from config example.
* Add logo for Volumio media player
* Update volumio with release and logo
