Update melotts.json (#20907)

one word change on melotts schema

Author: mchenco

src/content/workers-ai-models/melotts.json

@@ -17,7 +17,7 @@
                 "prompt": {
                     "type": "string",
                     "minLength": 1,
-                    "description": "A text description of the image you want to generate"
+                    "description": "A text description of the audio you want to generate"
                 },
                 "lang": {
                     "type": "string",
@@ -50,4 +50,4 @@
             ]
         }
     }
-}
+}