remove unnecessary import, update readme

Author: mjhea0

README.md

@@ -1 +1,24 @@
 # FastAPI + SQLModel + Alembic
+
+Sample FastAPI project that uses async SQLAlchemy, SQLModel, Postgres, Alembic, and Docker.
+
+## Want to learn how to build this?
+
+Check out the [post](https://testdriven.io/blog/fastapi-sqlmodel/).
+
+## Want to use this project?
+
+```sh
+$ docker-compose up -d --build
+$ docker-compose exec web alembic upgrade head
+```
+
+Sanity check: [http://localhost:8004/ping](http://localhost:8004/ping)
+
+Add a song:
+
+```sh
+$ curl -d '{"name":"Midnight Fit", "artist":"Mogwai", "year":"2021"}' -H "Content-Type: application/json" -X POST http://localhost:8004/songs
+```
+
+Get all songs: [http://localhost:8004/songs](http://localhost:8004/songs)

project/app/main.py

@@ -2,7 +2,7 @@
 from sqlalchemy.future import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.db import get_session, init_db
+from app.db import get_session
 from app.models import Song, SongCreate
 
 app = FastAPI()