Open port 8000 instead of 80 in docker container process

#49

start_service.sh

@@ -8,4 +8,4 @@ python app/check_oidc_connection.py
 python app/check_database_connection.py
 
 # Start webserver
-uvicorn app.main:app --host 0.0.0.0 --port 80
+uvicorn app.main:app --host 0.0.0.0 --port 8000