message: Adding instructions on how to run Cypress in Contributing.md
diff: @@ -343,6 +343,21 @@ We use [Mocha](https://mochajs.org/), [Chai](http://chaijs.com/) and [Enzyme](ht
  npm i
  npm run test
  +We use [Cypress](https://www.cypress.io/) for integration tests. Tests can be run by `tox -e cypress`. To open Cypress and explore tests first setup and run test server:
  +
  + export SUPERSET_CONFIG=tests.superset_test_config
  + superset load_test_users
  + superset db upgrade
  + superset init
  + superset load_examples
  + superset runserver
  +
  +Open Cypress tests:
  +
  + cd /superset/superset/assets
  + npm run build
  + npm run cypress run
  +
  ## Linting
  Lint the project with:
  