✨ Update CRUD utils for users handling password hashing (#106)

* Add some information how to run backand test for local backand development

* Bug fixes in backend app

* 🎨 Update format

* ✅ Use random_email for test_update_user

Co-authored-by: Mocsar Kalman <mocsar.kalman@gravityrd.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

{{cookiecutter.project_slug}}/README.md

@@ -134,6 +134,20 @@ If you need to install any additional package for the tests, add it to the file
 
 If you use GitLab CI the tests will run automatically.
 
+#### Local tests
+
+Start the stack with this command:
+
+```Bash
+DOMAIN=backend sh ./scripts/test-local.sh
+```
+The `./backend/app` directory is mounted as a "host volume" inside the docker container (set in the file `docker-compose.dev.volumes.yml`).
+You can rerun the test on live code:
+
+```Bash
+docker-compose exec backend-tests /tests-start.sh
+```
+
 #### Test running stack
 
 If your stack is already up and you just want to run the tests, you can use: