Added a note about formats for mediaplayers (home-assistant#2579)

riemers · Landrash · commit bf776b5ab315 · 2017-05-06T22:40:33.000+02:00
Note points out sonos, since it is widely used and actual
diff --git a/source/_components/tts.voicerss.markdown b/source/_components/tts.voicerss.markdown
@@ -43,3 +43,5 @@ tts:
     codec: mp3
     format: 8khz_8bit_mono
 ```
+
+Please note, some media_players require a certain format. For example the Sonos requires a format of '44khz_16bit_stereo'
