readme: remove references to specific version
readme: remove references to specific version

MabinGo/rkt,alban/rkt,jasonchaffee/rkt,eyakubovich/rkt,tmrts/rkt,markllama/rkt,monstermunchkin/rkt,yifan-gu/rkt,michelangelo13/rkt,nhlfr/rkt,rhvgoyal/rkt,adfernandes/rkt,alban/rkt,Shashwatsh/rkt,tixxdz/rkt,marineam/rkt,sgotti/rkt,akshaykarle/rkt,rhvgoyal/rkt,mattthias/pkg-rkt,coreos/rkt,michelangelo13/rkt,fdserr/rkt,cab105/rkt,rkt/rkt,lee212/rkt,maquanyi/rkt,Yhgenomics/rkt,matthaias/rkt,intelsdi-x/rkt,xnox/rkt,lucasallan/rkt,ChengTiesheng/rkt,endocode/rkt,squeed/rkt,crawford/rkt,mjg59/rkt,michelangelo13/rkt,wparad/rkt,iankronquist/rkt,joshix/rkt,chrisseto/rkt,jonboulle/rkt,jakon89/rkt,tv42/rkt,adfernandes/rkt,lucasallan/rkt,smarvin/rkt,sgotti/rkt,ybubnov/rkt,jonboulle/rkt,squeed/rkt,crawford/rkt,matthaias/rkt,linki/rkt,monstermunchkin/rkt,shobhit85/rkt,intelsdi-x/rkt,krnowak/rkt,matthaias/rkt,eyakubovich/rkt,Yhgenomics/rkt,MabinGo/rkt,lucasallan/rkt,sstabellini/rkt,intfrr/rkt,robszumski/rocket,ramitsurana/rkt,sinfomicien/rkt,adfernandes/rkt,blixtra/rkt,dalanlan/rkt,Shashwatsh/rkt,monstermunchkin/rkt,shtouff/rkt,euank/rkt,rkt/rkt,bsmr-go/rkt,sinfomicien/rkt,squeed/rkt,klizhentas/rkt,squaremo/rkt,joshix/rkt,sstabellini/rkt,alexhersh/rkt,yifan-gu/rocket,dgonyeo/rkt,mjg59/rkt,kinvolk/rkt,alexhersh/rkt,linki/rkt,il9ue/rkt,squaremo/rkt,joshix/rkt,shtouff/rkt,jzelinskie/rkt,chrisseto/rkt,kbrwn/rkt,Shashwatsh/rkt,cab105/rkt,liubq919/rkt,akshaykarle/rkt,liubq919/rkt,iaguis/rkt,clearlinux/rkt,dgonyeo/rkt,rkt/rkt,liugenping/rkt,blixtra/rkt,Wilybald/rkt,tixxdz/rkt,coreos/rkt,lucasallan/rkt,bsmr-go/rkt,wparad/rkt,yifan-gu/rocket,iaguis/rkt,endocode/rkt,lee212/rkt,achanda/rkt,jjlakis/rkt,MabinGo/rkt,intfrr/rkt,squaremo/rkt,kinvolk/rkt,cab105/rkt,wparad/rkt,jjlakis/rkt,yifan-gu/rkt,il9ue/rkt,Wilybald/rkt,euank/rkt,marineam/rkt,luebken/rkt,jasonchaffee/rkt,ybubnov/rkt,iankronquist/rkt,sstabellini/rkt,liubq919/rkt,mattthias/pkg-rkt,MattDees/rkt,tixxdz/rkt,mjg59/rkt,clearlinux/rkt,ChengTiesheng/rkt,dgonyeo/rkt,ramitsurana/rkt,krnowak/rkt,il9ue/rkt,klizhentas/rkt,iaguis/rkt,tmrts/rkt,endocode/rkt,ramitsurana/rkt,markllama/rkt,tv42/rkt,tv42/rkt,jakon89/rkt,nhlfr/rkt,markllama/rkt,akshaykarle/rkt,smarvin/rkt,rot26/rkt,shtouff/rkt,shobhit85/rkt,dalanlan/rkt,rot26/rkt,dalanlan/rkt,nhlfr/rkt,coreos/rkt,maquanyi/rkt,ramitsurana05/rkt,sgotti/rkt,iankronquist/rkt,chrisseto/rkt,ChengTiesheng/rkt,achanda/rkt,mike1729/rkt,euank/rkt,lsm5/rkt,alexhersh/rkt,kbrwn/rkt,crawford/rkt,shobhit85/rkt,jzelinskie/rkt,mike1729/rkt,yifan-gu/rocket,liugenping/rkt,eyakubovich/rkt,smarvin/rkt,xnox/rkt,blixtra/rkt,lsm5/rkt,jzelinskie/rkt,rhvgoyal/rkt,xnox/rkt,Wilybald/rkt,alban/rkt,jasonchaffee/rkt,maquanyi/rkt,klizhentas/rkt,intfrr/rkt,s-urbaniak/rkt,s-urbaniak/rkt,lsm5/rkt,Yhgenomics/rkt,MattDees/rkt,fdserr/rkt,bsmr-go/rkt,MattDees/rkt,linki/rkt,luebken/rkt,fdserr/rkt,mike1729/rkt,kinvolk/rkt,jonboulle/rkt,marineam/rkt,yifan-gu/rkt,robszumski/rocket,luebken/rkt,rot26/rkt,liugenping/rkt,robszumski/rocket,jakon89/rkt,kbrwn/rkt,ybubnov/rkt,clearlinux/rkt,ramitsurana05/rkt,s-urbaniak/rkt,jjlakis/rkt,rkt/rkt,kinvolk/rkt,lee212/rkt,achanda/rkt,joshix/rkt,intelsdi-x/rkt,Wilybald/rkt,mattthias/pkg-rkt,ramitsurana05/rkt,sinfomicien/rkt,krnowak/rkt,tmrts/rkt