Updated the README with info command details

README.md

@@ -26,3 +26,31 @@ bindsym XF86AudioStop exec "mpris-ctl stop"
 bindsym XF86AudioNext exec "mpris-ctl next"
 bindsym XF86AudioPrev exec "mpris-ctl prev"
 ````
+
+Supported format specifiers for `mpris-ctl info` command:
+
+```
+Format specifiers:
+	%track_name	prints the track name
+	%track_number	prints the track number
+	%track_length	prints the track length (seconds)
+	%artist_name	prints the artist name
+	%album_name	prints the album name
+	%album_artist	prints the album artist
+	%play_status	prints the playback status
+	%shuffle	prints the shuffle mode
+	%volume		prints the volume
+	%loop_status	prints the loop status
+	%position	prints the song position (seconds)
+	%bitrate	prints the track's bitrate
+```
+
+Example: 
+
+```
+$ mpris-ctl info "%track_name"
+Song 42
+$ mpris-ctl info
+Song 42 - Bloor - The Best of Bloor
+
+```