expand this variable name to heartbeat seconds (#828) #48

	name: Publish yarndoc

	on:
	push:
	branches:
	- master

	jobs:
	publish:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v2

	- name: Setup Ruby using Bundler
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: '3.0'

	- name: install gems
	run: bundle install && gem install yard

	- name: generate documentation
	run: yardoc --output-dir /tmp/docs/

	- name: save docs and publish
	run: \|
	git clone https://${{ secrets.OSC_ROBOT_GH_PUB_REPO_TOKEN }}@github.com/osc/ood_core.git /tmp/core
	git config --global user.name "${{ secrets.OSC_ROBOT_GH_USER }}"
	git config --global user.email "${{ secrets.OSC_ROBOT_GH_USER_EMAIL }}"
	cd /tmp/core
	git checkout gh-pages
	rm -rf docs/
	mv /tmp/docs .
	git add docs/
	git commit -m 'new docs'
	git push

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