As I learned from a support Thread on Discord, the tagName convention was dropped during the beta period. Instead you need to export the class and use it in astro file.
I updated the code samples on this page accordingly.
* Integration README fixes
* More tweaks (mostly code backticks for filenames)
* Update changeset
* Few more tweaks
* Make sure code blocks all have a code language
* Use URLs of new docs pages for package homepage
* One more stray `<br>` 👢
* Standardise to `sh` instead of `shell`
