Fix talk about image embeding in the Audio class.

Too much copy paste I guess :)

IPython/lib/display.py

@@ -33,9 +33,9 b' class Audio(DisplayObject):'
     filename : unicode
         Path to a local file to load the data from.
     embed : boolean
-        Should the image data be embedded using a data URI (True) or be
-        loaded using an <img> tag. Set this to True if you want the image
-        to be viewable later with no internet connection in the notebook.
+        Should the image data be embedded using a data URI (True) or should
+        the original source be referenced. Set this to True if you want the 
+        audio to playable later with no internet connection in the notebook.
 
         Default is `True`, unless the keyword argument `url` is set, then
         default value is `False`.