multimedia/yarock: Wrap README at 72 columns.

Signed-off-by: B. Watson <yalhcru@gmail.com>

multimedia/yarock/README

@@ -1,10 +1,9 @@
 Yarock is a modern looking music player, packed with features,
-that doesn't depend on any specific desktop environment. 
-Yarock is designed to provide an easy and pretty music browser 
-based on cover art.
+that doesn't depend on any specific desktop environment.  Yarock is
+designed to provide an easy and pretty music browser based on cover
+art.
 
-NOTE:
-You can build yarock with alternate audio engine (phonon is the default one).
-If you want to disable phonon just use -DENABLE_PHONON=OFF as cmake option.
-For vlc audio engine -DENABLE_VLC=ON.
-For mpv audio engine -DENABLE_MPV=ON.
+NOTE: You can build yarock with an alternate audio engine (phonon is
+the default), by editing the SlackBuild. If you want to disable phonon
+just use -DENABLE_PHONON=OFF as a cmake option. For vlc audio engine
+-DENABLE_VLC=ON. For mpv audio engine -DENABLE_MPV=ON.