message: Add Express.js jesting section.
diff: @@ -26,3 +26,7 @@ Although Jest may be considered a React-specific test runner, in fact it is a un
  ## Redux
  - [Writing Tests](https://redux.js.org/recipes/writing-tests) by Redux docs
  +
  +## Express.js
  +
  +- [How to test Express.js with Jest and Supertest](http://www.albertgao.xyz/2017/05/24/how-to-test-expressjs-with-jest-and-supertest/) by Albert Gao ([@albertgao](https://twitter.com/albertgao))
  