Update app.py

app.py

@@ -7,10 +7,11 @@ def greet(description,color,features):
     
     description = 'description:' + description.replace(' ', '-')
 
-    color = ' color:' + '-'.join(color)
-   
+    color = ' color:' + ','.join(color)
 
-    final += description + color
+    features = ' features:' + ','.join(features)
+   
+    final += description + color + features
     
     return final