feat(slides.yml): Add link to Google Slides for "jOpenSpace: VPN in 2… #2140

	name: Push to Gitlab
	on: [push]
	jobs:
	push:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	- run: \|
	export BRANCH=$(echo $GITHUB_REF \| sed 's/refs\/heads\///g')
	git remote add gitlab ${{ secrets.REPOSITORY_URL }}
	git branch $BRANCH
	git push gitlab $BRANCH -f

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