新增程序流程图章节，添加McCabe复杂度和测试内容；新增相关图片以增强可读性 #52

	# workflow name
	name: Hexo Blog CI(git)

	# master branch on push, auto run
	on:
	workflow_dispatch:
	push:
	branches:
	- master

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	# check it to your workflow can access it
	# from: https://github.com/actions/checkout
	- name: Checkout Repository master branch
	uses: actions/checkout@master

	# from: https://github.com/actions/setup-node
	- name: Setup Node.js 12.x
	uses: actions/setup-node@master
	with:
	node-version: "12.x"

	- name: Setup Hexo Dependencies
	run: \|
	npm install hexo-cli -g
	npm install

	- name: Setup Deploy Private Key
	env:
	HEXO_DEPLOY_PRIVATE_KEY: ${{ secrets.HEXO_DEPLOY_PRIVATE_KEY }}
	run: \|
	mkdir -p ~/.ssh/
	echo "$HEXO_DEPLOY_PRIVATE_KEY" > ~/.ssh/id_rsa
	chmod 600 ~/.ssh/id_rsa
	ssh-keyscan github.com >> ~/.ssh/known_hosts

	- name: Setup Git Infomation
	env:
	GIT_USER_NAME: ${{ secrets.GIT_USER_NAME }}
	GIT_USER_EMAIL: ${{ secrets.GIT_USER_EMAIL }}
	run: \|
	git config --global user.name '$GIT_USER_NAME'
	git config --global user.email '$GIT_USER_EMAIL'

	- name: switch deploy
	run: \|
	chmod a+x ./switch.sh
	./switch.sh --git

	- name: Setup Gitalk
	env:
	COMMENT_CLIENT_ID: ${{ secrets.COMMENT_CLIENT_ID }}
	COMMENT_CLIENT_SECRET: ${{ secrets.COMMENT_CLIENT_SECRET }}
	run: \|
	sed -i 's/COMMENT_CLIENT_ID/'$COMMENT_CLIENT_ID'/g' ./_config.icarus.yml
	sed -i 's/COMMENT_CLIENT_SECRET/'$COMMENT_CLIENT_SECRET'/g' ./_config.icarus.yml

	- name: Deploy Hexo
	run: \|
	hexo clean
	hexo generate
	hexo deploy

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