Update modules_management.rst (#21889)
Update modules_management.rst (#21889)

need to add packages in setup.py, otherwise the package can not be found
cfei18/incubator-airflow,apache/airflow,lyft/incubator-airflow,cfei18/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,apache/airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,apache/airflow,apache/airflow,apache/airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,apache/airflow,nathanielvarona/airflow,lyft/incubator-airflow,lyft/incubator-airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow