This plugin finds haml files even if there aren’t any

[xplosionmind]

I have never used haml in Eleventy, but while using eleventy-upgrade-help to upgrade from v2.0.1 to v3 beta 1, I get this error:

[11ty/eleventy-upgrade-help] ERROR Found 59 haml files in your project but the haml plugin was moved from core to an officially supported plugin. You will need to add the plugin for haml, available here: https://github.com/11ty/eleventy-plugin-template-languages and you can learn more about this here: https://github.com/11ty/eleventy/issues/3124