[AIRFLOW-1430] Include INSTALL instructions to avoid GPL
[AIRFLOW-1430] Include INSTALL instructions to avoid GPL

mistercrunch/airflow,r39132/airflow,Acehaidrey/incubator-airflow,sekikn/incubator-airflow,RealImpactAnalytics/airflow,wooga/airflow,nathanielvarona/airflow,bolkedebruin/airflow,r39132/airflow,wndhydrnt/airflow,wolfier/incubator-airflow,mtagle/airflow,owlabs/incubator-airflow,sid88in/incubator-airflow,Acehaidrey/incubator-airflow,lxneng/incubator-airflow,criccomini/airflow,andyxhadji/incubator-airflow,apache/incubator-airflow,Fokko/incubator-airflow,airbnb/airflow,artwr/airflow,owlabs/incubator-airflow,jgao54/airflow,andyxhadji/incubator-airflow,artwr/airflow,wileeam/airflow,apache/airflow,edgarRd/incubator-airflow,apache/airflow,akosel/incubator-airflow,nathanielvarona/airflow,edgarRd/incubator-airflow,adamhaney/airflow,Fokko/incubator-airflow,sekikn/incubator-airflow,dhuang/incubator-airflow,mrkm4ntr/incubator-airflow,Tagar/incubator-airflow,bolkedebruin/airflow,sid88in/incubator-airflow,andyxhadji/incubator-airflow,airbnb/airflow,mistercrunch/airflow,sekikn/incubator-airflow,Fokko/incubator-airflow,apache/airflow,gtoonstra/airflow,criccomini/airflow,fenglu-g/incubator-airflow,danielvdende/incubator-airflow,gtoonstra/airflow,CloverHealth/airflow,nathanielvarona/airflow,DinoCow/airflow,yk5/incubator-airflow,spektom/incubator-airflow,wileeam/airflow,jgao54/airflow,criccomini/airflow,spektom/incubator-airflow,wooga/airflow,spektom/incubator-airflow,malmiron/incubator-airflow,dhuang/incubator-airflow,mrkm4ntr/incubator-airflow,lyft/incubator-airflow,RealImpactAnalytics/airflow,apache/airflow,sid88in/incubator-airflow,andyxhadji/incubator-airflow,danielvdende/incubator-airflow,adamhaney/airflow,DinoCow/airflow,artwr/airflow,danielvdende/incubator-airflow,RealImpactAnalytics/airflow,adamhaney/airflow,sergiohgz/incubator-airflow,sergiohgz/incubator-airflow,mistercrunch/airflow,fenglu-g/incubator-airflow,wileeam/airflow,airbnb/airflow,gtoonstra/airflow,subodhchhabra/airflow,danielvdende/incubator-airflow,Tagar/incubator-airflow,danielvdende/incubator-airflow,jgao54/airflow,mistercrunch/airflow,cfei18/incubator-airflow,mrkm4ntr/incubator-airflow,akosel/incubator-airflow,CloverHealth/airflow,wndhydrnt/airflow,jgao54/airflow,DinoCow/airflow,sekikn/incubator-airflow,Acehaidrey/incubator-airflow,Tagar/incubator-airflow,cfei18/incubator-airflow,apache/airflow,wolfier/incubator-airflow,wolfier/incubator-airflow,cfei18/incubator-airflow,adamhaney/airflow,CloverHealth/airflow,wooga/airflow,wooga/airflow,airbnb/airflow,dhuang/incubator-airflow,bolkedebruin/airflow,mrkm4ntr/incubator-airflow,mtagle/airflow,lyft/incubator-airflow,apache/incubator-airflow,Acehaidrey/incubator-airflow,wolfier/incubator-airflow,cfei18/incubator-airflow,wileeam/airflow,Acehaidrey/incubator-airflow,lxneng/incubator-airflow,yk5/incubator-airflow,malmiron/incubator-airflow,criccomini/airflow,mtagle/airflow,Acehaidrey/incubator-airflow,artwr/airflow,dhuang/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,fenglu-g/incubator-airflow,malmiron/incubator-airflow,subodhchhabra/airflow,Tagar/incubator-airflow,malmiron/incubator-airflow,DinoCow/airflow,lxneng/incubator-airflow,apache/incubator-airflow,nathanielvarona/airflow,akosel/incubator-airflow,bolkedebruin/airflow,mtagle/airflow,wndhydrnt/airflow,subodhchhabra/airflow,akosel/incubator-airflow,Fokko/incubator-airflow,edgarRd/incubator-airflow,r39132/airflow,owlabs/incubator-airflow,spektom/incubator-airflow,apache/incubator-airflow,apache/airflow,yk5/incubator-airflow,edgarRd/incubator-airflow,sid88in/incubator-airflow,owlabs/incubator-airflow,wndhydrnt/airflow,CloverHealth/airflow,cfei18/incubator-airflow,danielvdende/incubator-airflow,bolkedebruin/airflow,lxneng/incubator-airflow,gtoonstra/airflow,subodhchhabra/airflow,fenglu-g/incubator-airflow,r39132/airflow,sergiohgz/incubator-airflow,RealImpactAnalytics/airflow,yk5/incubator-airflow,lyft/incubator-airflow,nathanielvarona/airflow,sergiohgz/incubator-airflow,lyft/incubator-airflow