use correct indentation

Author: samaaron

etc/examples/magician/wob_rhyth.rb

@@ -16,7 +16,7 @@
       sample :drum_heavy_kick
       sample :bass_hit_c, rate: 0.8, amp: 0.4
       sleep 1
-#control w, phase: [0.5, 1, 2].choose
+      #control w, phase: [0.5, 1, 2].choose
     end
   end
 end