新增对接地图服务影像栅格图层 gamma 参数，新增创建临时图层示例 review by luox #1661

	name: Auto Sync
	on:
	push:
	branches-ignore:
	- 'dependabot/**'
	jobs:
	mirror_to_gitee:
	runs-on: ubuntu-latest
	steps:
	- name: 'Checkout'
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: 'Mirror to gitee'
	uses: pixta-dev/repository-mirroring-action@v1
	with:
	target_repo_url:
	${{ secrets.GITEE_URL }}
	ssh_private_key:
	${{ secrets.GITEE_KEY }}

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