add src of cassette images

Author: Batocera (presence)

hash/coco_cass.xml

@@ -6,8 +6,9 @@ license:CC0-1.0
 
 <softwarelist name="coco_cass" description="Tandy Radio Shack Color Computer cassette images">
 
-<!-- appending "1" to software name to workaround Batocera Linux issue:
-     https://github.com/batocera-linux/batocera.linux/issues/11781 -->
+        <!-- cassette images (.cas,.wav) downloaded from the Color Computer Archive (colorcomputerarchive.com) -->
+        <!-- appending "1" to give cassettes unique software name (from diskettes) and
+             workaround Batocera Linux issue: https://github.com/batocera-linux/batocera.linux/issues/11781 -->
 
         <software name="grover1">
                 <description>Grover's Number Rover (CCW)</description>