Update upgrade_milvus_cluster-helm.md #2845

	name: dev

	on:
	push:
	branches:
	- v2.4.x
	release:
	types: [released]
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build "
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	- name: Check out Git repository
	uses: actions/checkout@v1
	with:
	ref: v2.4.x

	- name: Extract branch name
	shell: bash
	run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
	id: extract_branch

	- name: Md2md
	run: \|
	cp site/en/Variables.json ./
	mv site doc_from
	sudo npm install @zilliz/mdtomd -g
	goover
	rm -rf doc_from/*
	rm check-link.js
	mv doc_to site

	- name: Delete And Push
	run: \|
	sudo apt-get update
	sudo apt-get install jq
	cd ../
	git clone https://.:${{ secrets.P_GITHUB_TOKEN }}@github.com/milvus-io/web-content.git target
	git config --global user.email "Milvus-doc-bot@zilliz.com"
	git config --global user.name "Milvus-doc-bot"
	cp ./milvus-docs/version.json ./target
	cd target
	rm -rf `cat version.json \| jq -r .version`
	mkdir `cat version.json \| jq -r .version`
	cp -avr ../milvus-docs/** ./`cat version.json \| jq -r .version`
	git add .
	git commit -m "Release new docs "
	git push -f origin master

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