add docs publishing 🤞
add docs publishing 🤞

hat tip
https://github.com/NullVoxPopuli/ember-jsqr/blob/master/.github/workflows/docs-for-release.yml
and
https://github.com/ember-intl/ember-intl/blob/main/.github/workflows/docs-master.yml

kturney/ember-mapbox-gl,kturney/ember-mapbox-gl