Use text from readme

Co-authored-by: CrazyMax <[email protected]>

Author: StefanSchoof

action.yml

@@ -43,7 +43,7 @@ outputs:
   bake-file:
     description: 'Bake definiton file'
   json:
-    description: 'A JSON object composed of the generated tags and labels'
+    description: 'JSON output of tags and labels'
 
 runs:
   using: 'node12'