Update Dockerfile to include urban_centers csv

server/Dockerfile

@@ -12,6 +12,6 @@ COPY requirements.txt ./
 
 RUN pip3 install -r requirements.txt
 
-COPY app.py db.py extra_api.py game_api.py lib.py ./
+COPY app.py db.py extra_api.py game_api.py lib.py urban_centers.csv ./
 
 CMD gunicorn --workers=1 --bind=0.0.0.0:5000 app:app