message: add circle ci badge on readme
diff: # Ts Auto Mock
  +[![CircleCI](https://circleci.com/gh/uittorio/ts-auto-mock/tree/master.svg?style=svg)](https://circleci.com/gh/uittorio/ts-auto-mock/tree/master)
  A Typescript transformer that will allow you to create mock for any types (Interfaces, Classes, ...) without need to create manual fakes/mocks.
  