Update app.py

app.py

@@ -37,7 +37,7 @@ def chat(x):
 		fn_index=0
     )
     result = str(result)
-    output = result[len(result.rsplit(':', 1)[0]):]
+    output = result[len(result.rsplit(':', 1)[0]) + 2 :]
     
     return output