docs: add ckanaction to Next Steps in README and ignore README for CI

Author: rzmk

.github/workflows/run-ckan-only-install.yml

@@ -5,6 +5,7 @@ on:
       - main
     paths-ignore:
       - 'docs/**'
+      - 'README.md'
   workflow_dispatch:
 jobs:
   ckanonlyinstall:

README.md

@@ -29,6 +29,7 @@ You may find the following guides useful while developing with CKAN:
 - [Customize your config file](https://docs.ckan.org/en/latest/extensions/index.html)
 - [Create test data](https://docs.ckan.org/en/latest/maintaining/getting-started.html#creating-test-data)
 - [Visit ckan.org](https://ckan.org)
+- [Interact with your CKAN API at ckanaction.dathere.com](https://ckanaction.dathere.com)
 
 ## `ckan-devstaller` demos