Proper readme

Signed-off-by: Daniele Ricci <[email protected]>

README.md

@@ -12,9 +12,26 @@ start `snapclient` when Mopidy is stopped and stop it when Mopidy is playing.
 Install by running:
 
 ```
-sudo python3 -m pip mopidy-snapduck
+sudo python3 -m pip Mopidy-Snapduck
 ```
 
 ## Configuration
 
-TODO
+Before starting Mopidy, you must add configuration for Mopidy-Snapduck to your Mopidy configuration file::
+
+```
+[snapduck]
+snapclient_path = /path/to/snapclient
+snapclient_args = arguments_for_snapclient
+```
+
+The following configuration values are available:
+
+* `snapduck/enabled`: If the snapduck extension should be enabled or not. Defaults to `true`.
+* `snapduck/snapclient_path`: Path to the snapclient executable. Defaults to `/usr/bin/snapclient`.
+* `snapduck/snapclient_args`: Arguments for snapclient. Defaults to none.
+
+## ALSA
+
+When using ALSA Mopidy will not release the sound card immediately after stopping, so it is recommended
+to configure a dmix device to enable shared access between Mopidy and the Snapcast client.