wf runs on push and once a week; add comment to readme

Author: tinyg210

.github/workflows/update-content.yml

@@ -1,11 +1,10 @@
 name: Update README with New Content
 
-#on:
-#  schedule:
-#    # Runs at 00:00 UTC every Sunday
-#    - cron: '0 0 * * 0'
-
-on: [push]
+on:
+  push:
+  schedule:
+    # Runs at 00:00 UTC every Sunday
+    - cron: '0 0 * * 0'
 
 jobs:
   update-readme:

README.md

@@ -93,6 +93,8 @@ If you want to contribute to this list, then please read the [contributing guide
 - [Miniflare](https://pypi.org/project/localstack-extension-miniflare/): LocalStack extension to run Miniflare, a serverless Cloudflare worker emulator.
 - [Stripe](https://pypi.org/project/localstack-extension-stripe/): LocalStack extension to run a stateful Stripe service mock.
 
+[//]: # (!! Do not place anything under content - this part is periodically recreated to update list from existing resources.)
+
 ## Content
 
 ### Tutorials