docs: mention dev env auth backdoor

README.md

@@ -23,6 +23,16 @@ AUTH_RUNNER_CLIENT_SECRET=foo-bar
 
 It is obtained from [keycloak](https://keycloak.zazukoians.org/admin/master/console/#/zazuko-dev/clients/64f92868-71e3-48e1-9d8b-7bfaf5fac2bd/credentials)
 
+Alternatively, you can bypass authentication altogether by setting the environment variables in `.env` similar to the following example:
+
+```dotenv
+VUE_APP_E2E=true
+VUE_APP_X_USER=john-doe
+VUE_APP_X_PERMISSION=pipelines:read,pipelines:write
+```
+
+If you have already started the application, make sure to run `lando rebuild -y` to apply the changes.
+
 ### Starting
 
 The easiest way it to start a local dockerized environment which will run the database, API and UI, and provide set up local HTTPS endpoints for them.