docs: add codecov and badges

Close #49

Author: joolfe

README.md

@@ -7,6 +7,8 @@
 Or in other words, transform [this specification](https://schema.getpostman.com/json/collection/v2.1.0/collection.json) to [this one](https://swagger.io/specification/)
 
 [![build](https://github.com/joolfe/postman-to-openapi/workflows/Node.js%20CI/badge.svg)](https://github.com/joolfe/postman-to-openapi/actions)
+[![codecov](https://codecov.io/gh/joolfe/postman-to-openapi/branch/master/graph/badge.svg)](https://codecov.io/gh/joolfe/postman-to-openapi)
+
 
 ## Documentation
 

docs/index.md

@@ -4,8 +4,8 @@
 
 🛸 Convert postman collection to OpenAPI specification, or in other words, transform [this specification](https://schema.getpostman.com/json/collection/v2.1.0/collection.json) to [this one](https://swagger.io/specification/)
 
-[![build](https://img.shields.io/github/workflow/status/joolfe/postman-util-lib/Node%20CI?&label=Build&logo=github&style=flat-square)](https://github.com/joolfe/postman-util-lib/actions)
-[![codecov](https://img.shields.io/codecov/c/github/joolfe/postman-util-lib?logo=codecov&style=flat-square)](https://codecov.io/gh/joolfe/postman-util-lib)
+[![build](https://github.com/joolfe/postman-to-openapi/workflows/Node.js%20CI/badge.svg)](https://github.com/joolfe/postman-to-openapi/actions)
+[![codecov](https://codecov.io/gh/joolfe/postman-to-openapi/branch/master/graph/badge.svg)](https://codecov.io/gh/joolfe/postman-to-openapi)
 
 ## Features