add test coverage badage

Signed-off-by: seven <[email protected]>

README.md

@@ -5,29 +5,42 @@
 [![npm version](https://badge.fury.io/js/@geek-fun%2Fserverlessinsight.svg)](https://badge.fury.io/js/@geek-fun%2Fserverlessinsight)
 [![Known Vulnerabilities](https://snyk.io/test/github/geek-fun/serverlessinsight/badge.svg)](https://snyk.io/test/github/geek-fun/serverlessinsight)
 [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+[![codecov](https://codecov.io/gh/geek-fun/serverlessinsight/graph/badge.svg?token=ISW7MFuSlf)](https://codecov.io/gh/geek-fun/serverlessinsight)
 
 Full life cycle cross providers serverless application management for your fast-growing business.
 
 ## Quick Start
+
 ### prerequisites
+
 - Node.js 16.x
+
 ### Install
+
 ```bash
 npm install -g @geek-fun/serverlessinsight
 ```
+
 ### Usage
+
 ```bash
 si -h
 ```
+
 #### Initialize a new project
+
 ```bash
 si init
 ```
+
 #### Deploy the application
+
 ```bash
 si deploy
 ```
+
 #### Remove the application
+
 ```bash
 si remove
 ```