Update requirements format documentation
Update requirements format documentation

Ensure new feature documented.

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