Replace Beer slides with HTML #300

	name: CI
	on: [ push, pull_request ]

	jobs:
	main:
	name: Run
	runs-on: 'ubuntu-latest'
	steps:
	# Uses the latest DMD
	- uses: dlang-community/setup-dlang@v1
	- uses: actions/checkout@v2
	- name: Test
	run: \|
	make all

	- name: Deploy to Github pages
	if: github.event_name == 'push'
	run: \|
	# Remove gh-branch if it already exists, check it out
	git branch -D gh-pages \|\| true
	git checkout --orphan gh-pages
	# Remove all staged files - We only need the docs
	git rm -rf $(git ls-files)
	# We can have some leftover files (e.g. build)
	# So add docs (which is only what we need), then `git mv` it.
	git add docs/
	# git mv -k out/* ./
	# Configure user (because persist-credentials does not persist everything)
	git config --global user.name "${{ github.actor }}"
	git config --global user.email "${{ github.actor }}@users.noreply.github.com"
	# We're done
	git commit -m "Deployment for commit ${{ github.sha }}"
	git push -f ${{ github.event.repository.clone_url }} gh-pages:gh-pages

Provide feedback