Add helpful hints #3

	name: Choose the starter code of your choice
	on:
	push:
	branches: [main]

	jobs:
	prepare-repo:
	name: Prepare repository
	runs-on: ubuntu-latest
	if: github.repository != 'LS-Lab/Compilers-course-code-template'
	permissions:
	contents: write # we need to push!

	steps:
	- name: Checkout fresh repository
	uses: actions/checkout@v4

	- name: Setup Git user
	run: \|
	git config user.email "[email protected]"
	git config user.name "GitHub Action"

	- name: Edit README and remove this workflow
	run: \|
	git switch main
	mv .github/workflows/README_success.md README.md
	sed -i "s\|REPO_REF\|${{ github.server_url }}/${{ github.repository }}\|g" README.md
	rm -r .github/workflows/starter-code.yaml
	git add .
	git commit -m "Prepare Repository for usage"

	- name: Push changes
	uses: ad-m/[email protected]
	with:
	branch: main
	github_token: ${{ secrets.GITHUB_TOKEN }}

	- name: Add original remote
	run: \|
	git remote add original https://github.com/LS-Lab/Compilers-course-code-template
	git fetch original

	- name: Create Haskell branch
	run: \|
	git switch -c starter/haskell original/haskell
	git rebase -Xtheirs main
	git push --set-upstream origin starter/haskell

	- name: Create Java branch
	run: \|
	git switch -c starter/java original/java
	git rebase -Xtheirs main
	git push --set-upstream origin starter/java

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