add workflow

backend/README.md

@@ -18,6 +18,19 @@ hatch shell
 fastapi dev src/main.py
 ```
 
+### Migration
+This repository use `alembic` for migrations
+
+On first installation copy the `alembic.ini.example` to `alembic.ini`
+#### Create migration
+```console
+alembic revision --autogenerate -m "message"
+```
+#### Apply migration
+```console
+alembic upgrade head
+```
+
 ## License
 
 `backend` is distributed under the terms of the [MIT](https://spdx.org/licenses/MIT.html) license.