Document the logic behind the Pre Release/Stable distinction
Document the logic behind the Pre Release/Stable distinction

alex/pip,patricklaw/pip,qbdsoft/pip,mujiansu/pip,jythontools/pip,mattrobenolt/pip,ChristopherHogan/pip,luzfcb/pip,tdsmith/pip,zenlambda/pip,harrisonfeng/pip,alquerci/pip,rbtcollins/pip,atdaemon/pip,caosmo/pip,msabramo/pip,jamezpolley/pip,techtonik/pip,h4ck3rm1k3/pip,blarghmatey/pip,pypa/pip,habnabit/pip,dstufft/pip,sbidoul/pip,h4ck3rm1k3/pip,luzfcb/pip,ncoghlan/pip,techtonik/pip,cjerdonek/pip,jamezpolley/pip,esc/pip,ChristopherHogan/pip,graingert/pip,chaoallsome/pip,supriyantomaftuh/pip,yati-sagade/pip,erikrose/pip,alquerci/pip,jasonkying/pip,dstufft/pip,davidovich/pip,pjdelport/pip,sigmavirus24/pip,zenlambda/pip,prasaianooz/pip,RonnyPfannschmidt/pip,techtonik/pip,nthall/pip,mindw/pip,fiber-space/pip,qwcode/pip,yati-sagade/pip,chaoallsome/pip,pjdelport/pip,jmagnusson/pip,harrisonfeng/pip,mindw/pip,habnabit/pip,benesch/pip,willingc/pip,Gabriel439/pip,alex/pip,James-Firth/pip,dstufft/pip,nthall/pip,habnabit/pip,blarghmatey/pip,zvezdan/pip,KarelJakubec/pip,mindw/pip,jythontools/pip,benesch/pip,ianw/pip,caosmo/pip,qbdsoft/pip,davidovich/pip,ncoghlan/pip,nthall/pip,jythontools/pip,esc/pip,sigmavirus24/pip,zvezdan/pip,jamezpolley/pip,harrisonfeng/pip,tdsmith/pip,natefoo/pip,KarelJakubec/pip,graingert/pip,caosmo/pip,prasaianooz/pip,James-Firth/pip,fiber-space/pip,Gabriel439/pip,zenlambda/pip,sigmavirus24/pip,patricklaw/pip,wkeyword/pip,pjdelport/pip,wkeyword/pip,mattrobenolt/pip,natefoo/pip,zorosteven/pip,atdaemon/pip,minrk/pip,atdaemon/pip,rouge8/pip,qbdsoft/pip,natefoo/pip,mujiansu/pip,zorosteven/pip,msabramo/pip,pradyunsg/pip,Carreau/pip,mujiansu/pip,rouge8/pip,willingc/pip,wkeyword/pip,pfmoore/pip,jmagnusson/pip,zvezdan/pip,KarelJakubec/pip,haridsv/pip,jmagnusson/pip,Ivoz/pip,erikrose/pip,rbtcollins/pip,benesch/pip,fiber-space/pip,willingc/pip,luzfcb/pip,qwcode/pip,minrk/pip,squidsoup/pip,alex/pip,xavfernandez/pip,pfmoore/pip,squidsoup/pip,James-Firth/pip,tdsmith/pip,squidsoup/pip,haridsv/pip,davidovich/pip,xavfernandez/pip,blarghmatey/pip,ChristopherHogan/pip,jasonkying/pip,supriyantomaftuh/pip,xavfernandez/pip,Carreau/pip,pypa/pip,h4ck3rm1k3/pip,graingert/pip,ianw/pip,rbtcollins/pip,sbidoul/pip,pradyunsg/pip,RonnyPfannschmidt/pip,cjerdonek/pip,chaoallsome/pip,supriyantomaftuh/pip,RonnyPfannschmidt/pip,Gabriel439/pip,erikrose/pip,prasaianooz/pip,ncoghlan/pip,rouge8/pip,esc/pip,yati-sagade/pip,zorosteven/pip,haridsv/pip,Ivoz/pip,jasonkying/pip