Update README.md

update source repository name (and some minor formatting changes)

Author: TimidRobot

README.md

@@ -1,10 +1,10 @@
-# Creative Commons Open Source Website
+# Creative Commons Open Source website
 
-⚠️ DO NOT MODIFY THIS REPOSITORY!
+> ⚠️ **DO NOT MODIFY THIS REPOSITORY!**
 
-These are the static files for [Creative Commons Open Source][ccos]. The files
-are automatically built via CI from the source files in the
-[creativecommons.github.io-source][src] repository.
+These are the static files for [Creative Commons Open Source][ccos] website.
+The files are automatically built via GitHub Actions from the source files in
+the [ccos-website-source][src] repository.
 
 [ccos]: https://opensource.creativecommons.org/
-[src]: https://github.com/creativecommons/creativecommons.github.io-source
+[src]: https://github.com/creativecommons/ccos-website-source