Fix Airflow releasing guide (#16924)
Fix Airflow releasing guide (#16924)

Fix Airflow releasing guide with some minor issues
apache/incubator-airflow,dhuang/incubator-airflow,apache/incubator-airflow,danielvdende/incubator-airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,nathanielvarona/airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,apache/airflow,lyft/incubator-airflow,apache/airflow,mistercrunch/airflow,nathanielvarona/airflow,apache/airflow,nathanielvarona/airflow,bolkedebruin/airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,bolkedebruin/airflow,apache/airflow,lyft/incubator-airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,apache/incubator-airflow,apache/incubator-airflow,Acehaidrey/incubator-airflow,cfei18/incubator-airflow,bolkedebruin/airflow,Acehaidrey/incubator-airflow,Acehaidrey/incubator-airflow,dhuang/incubator-airflow,nathanielvarona/airflow,apache/airflow,bolkedebruin/airflow,mistercrunch/airflow,nathanielvarona/airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow,mistercrunch/airflow,apache/airflow,lyft/incubator-airflow,lyft/incubator-airflow,danielvdende/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,cfei18/incubator-airflow