docker-compose creates container nfldb_postgres_1 not nfldb-postgres

[a-camarillo]

Running Ubuntu 20.04.1 on WSL2.

Following along with the README.MD:

After cloning the repository and unzipping the zip folder, running docker-compose up -d postgres returns

Creating network "nfldb_default" with the default driver 
Creating nfldb_postgres_1... done

Expected: Creating nfldb-postgres... done

Running docker ps:

docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
b99289fc4048        postgres            "docker-entrypoint.s…"   2 hours ago         Up 2 hours          5432/tcp            nfldb_postgres_1

This does not cause any issues until the python cli:

>>>import nfldb
>>>db = nfldb.connect()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/code/nfldb/db.py", line 142, in connect
    host=host, port=port)
  File "/virtualenv/lib/python3.7/site-packages/psycopg2/__init__.py", line 127, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not translate host name "nfldb-postgres" to address: Name or service not known

Looked through the docker-compose.yml file and not sure why it would name the container nfldb_postgres_1 but the issue might be with psycopg2 rather than the docker file