App Center migration (#2459)

* type fix

* chart fix

* removing commas

* new updates

* design update

content/yaml-quick-start/migrating-from-app-center.md

@@ -142,16 +142,10 @@ workflows:
               failure: false
           app_store_connect:
             auth: integration
-
-            # Configuration related to TestFlight (optional)
-            # Note: This action is performed during post-processing.
             submit_to_testflight: true
             beta_groups: # Specify the names of beta tester groups that will get access to the build once it has passed beta review.
               - group name 1
               - group name 2
-
-            # Configuration related to App Store (optional)
-            # Note: This action is performed during post-processing.
             submit_to_app_store: false
 {{< /highlight >}}