doc: add doc #92

	name: Sync to GitLab

	on:
	push:
	branches-ignore:
	- 'gitlab-sync' # 忽略 'gitlab-sync' 分支，避免无限循环同步

	jobs:
	sync:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	fetch-depth: 0 # 获取完整的历史记录


	- name: Push to GitLab
	run: \|
	git remote add gitlab https://gitlab.eduxiji.net/202310007101563/Alien.git
	git fetch --all
	for branch in $(git branch --format='%(refname:short)'); do
	if [[ "$branch" != "gitlab-sync" ]]; then
	git -c http.extraHeader="Authorization: Basic $(echo -n ${{ secrets.GITLAB_AUTH }} \| base64)" push gitlab "$branch" -f
	fi
	done

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