message: Update readme for running tests
diff: @@ -31,10 +31,33 @@ ember serve
  Then browse to http://localhost:4200/
  ## Running tests
  +To run tests interactively:
  +```sh
  +ember test --s
  +```
  +
  +(To prevent the interactive tests from launching new windows, use command `ember test --s --launch=false` , and then visit `http://localhost:7357/` on your browser.)
  +
  +
  +To run tests in the console:
  ```sh
  ember test
  ```
  +To run the linter:
  +```sh
  +yarn lint:hbs
  +
  +yarn lint:js
  +```
  +
  +To run the linter, along with ember tests in the console:
  +```sh
  +yarn test
  +```
  +
  +Check `package.json` file for other testing and linting scripts.
  +
  #### Thumbnails
  Generating multiple image sizes / thumbs from
  