Update README.md

Signed-off-by: Lukasz Gryglicki <[email protected]>

Author: lukaszgryglicki

tests/functional/README.md

@@ -1,6 +1,23 @@
 # Installation
 
-Make sure that you have `node` and `npm` installed:
+Make sure that you have `node` and `npm` installed.
+
+Create `.env` file under `tests/functional` (it is git-ignored), with contents like this:
+
+```
+APP_URL=https://api-gw.dev.platform.linuxfoundation.org/
+AUTH0_TOKEN_API=https://linuxfoundation-dev.auth0.com/oauth/token
+AUTH0_USER_NAME=[your-username]
+AUTH0_PASSWORD=[your-password]
+LFX_API_TOKEN=[token]
+AUTH0_CLIENT_SECRET=[client-secret]
+AUTH0_CLIENT_ID=[client-id]
+CYPRESS_ENV=dev
+```
+
+You can ask for example `.env` file over slack.
+
+Then to run tests:
 
 - Run `npm install`.
 - Run all tests via: `npx cypress run`.