chore: removed reference to integration tests

Author: mdnorman

README.md

@@ -50,18 +50,10 @@ Many IDEs and editors support TSLint.
 
 This project uses [Jest](https://jestjs.io/) for testing. Run tests before checking in.
 
-### Unit Tests
-
 ```
 npm test
 ```
 
-### Integration Tests
-
-```
-npm run test:integration
-```
-
 ## Building
 
 ```