Add friendlier wording

.github/workflows/verify-bluehawk.yml

@@ -16,6 +16,8 @@ jobs:
           then 
             echo "Passed"
           else 
-            echo "Fail -- one or more files exist in /client that aren't in /generated."
+            echo "Error: The following files exist in the /sync-todo/v2/client directory that aren't in the /sync-todo/v2/generated directory."
+            echo "Please run the /sync-todo/v2/bluehawk.sh script to generate updated output files."
+            diff $dir1 $dir2 | grep 'Only'
             exit 1
           fi