Added Deprecation notice to README #245

	name: GitHub Action Slack Notify CI

	on:
	- push
	- pull_request

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1
	- name: Use Node.js v16.x
	uses: actions/setup-node@v1
	with:
	node-version: 16
	- name: Notify slack
	# Don't attempt to send Slack notifications on fork PRs which don't have access to secrets
	if: env.SLACK_BOT_TOKEN
	id: slack
	env:
	SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
	uses: ./
	with:
	channel_id: CB9QT2NNR
	status: STARTED
	color: warning
	- name: Get yarn cache
	id: yarn-cache
	run: echo "::set-output name=dir::$(yarn cache dir)"
	- uses: actions/cache@v1
	with:
	path: ${{ steps.yarn-cache.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-
	- name: yarn install and test
	run: \|
	yarn
	yarn test
	env:
	CI: true
	- name: yarn build
	run: yarn build
	- name: release
	if: ${{ endsWith(github.ref, '/main') }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: npx semantic-release
	- name: update v1 tag
	if: ${{ endsWith(github.ref, '/main') }}
	run: 'git push -f https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git HEAD:refs/heads/v1'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	- name: Notify slack success
	if: env.SLACK_BOT_TOKEN
	env:
	SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
	uses: ./
	with:
	message_id: ${{ steps.slack.outputs.message_id }}
	channel_id: CB9QT2NNR
	status: SUCCESS
	color: good

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