Add composite partition keys support to CQL3 doc
Add composite partition keys support to CQL3 doc

pcn/cassandra-1,snazy/cassandra,AtwooTM/cassandra,yukim/cassandra,juiceblender/cassandra,chaordic/cassandra,pallavi510/cassandra,mkjellman/cassandra,kangkot/stratio-cassandra,rackerlabs/cloudmetrics-cassandra,DikangGu/cassandra,DavidHerzogTU-Berlin/cassandraToRun,jsanda/cassandra,kangkot/stratio-cassandra,JeremiahDJordan/cassandra,bdeggleston/cassandra,vaibhi9/cassandra,phact/cassandra,a-buck/cassandra,boneill42/cassandra,vramaswamy456/cassandra,mshuler/cassandra,jeffjirsa/cassandra,darach/cassandra,chbatey/cassandra-1,jasonwee/cassandra,miguel0afd/cassandra-cqlMod,nitsanw/cassandra,michaelmior/cassandra,fengshao0907/cassandra-1,Imran-C/cassandra,Jaumo/cassandra,clohfink/cassandra,project-zerus/cassandra,dongjiaqiang/cassandra,pthomaid/cassandra,michaelsembwever/cassandra,nlalevee/cassandra,ejankan/cassandra,josh-mckenzie/cassandra,sbtourist/cassandra,cooldoger/cassandra,aureagle/cassandra,adelapena/cassandra,clohfink/cassandra,krummas/cassandra,pthomaid/cassandra,kangkot/stratio-cassandra,jsanda/cassandra,pcn/cassandra-1,ptnapoleon/cassandra,darach/cassandra,nakomis/cassandra,mike-tr-adamson/cassandra,kangkot/stratio-cassandra,pauloricardomg/cassandra,sluk3r/cassandra,yonglehou/cassandra,modempachev4/kassandra,josh-mckenzie/cassandra,blambov/cassandra,rackerlabs/cloudmetrics-cassandra,heiko-braun/cassandra,weipinghe/cassandra,ptnapoleon/cassandra,bcoverston/cassandra,joesiewert/cassandra,asias/cassandra,ptuckey/cassandra,vaibhi9/cassandra,beobal/cassandra,likaiwalkman/cassandra,Stratio/cassandra,hhorii/cassandra,weideng1/cassandra,DavidHerzogTU-Berlin/cassandra,yangzhe1991/cassandra,pallavi510/cassandra,stef1927/cassandra,thelastpickle/cassandra,emolsson/cassandra,likaiwalkman/cassandra,jeffjirsa/cassandra,rackerlabs/cloudmetrics-cassandra,adelapena/cassandra,macintoshio/cassandra,yanbit/cassandra,whitepages/cassandra,jasonwee/cassandra,apache/cassandra,Bj0rnen/cassandra,sedulam/CASSANDRA-12201,szhou1234/cassandra,driftx/cassandra,aweisberg/cassandra,christian-esken/cassandra,Jollyplum/cassandra,cooldoger/cassandra,thobbs/cassandra,krummas/cassandra,DikangGu/cassandra,bmel/cassandra,bcoverston/cassandra,mambocab/cassandra,carlyeks/cassandra,mshuler/cassandra,yukim/cassandra,thelastpickle/cassandra,sbtourist/cassandra,jeromatron/cassandra,RyanMagnusson/cassandra,DavidHerzogTU-Berlin/cassandraToRun,joesiewert/cassandra,ollie314/cassandra,emolsson/cassandra,modempachev4/kassandra,aarushi12002/cassandra,nutbunnies/cassandra,caidongyun/cassandra,snazy/cassandra,aboudreault/cassandra,Jaumo/cassandra,bmel/cassandra,sayanh/ViewMaintenanceCassandra,apache/cassandra,HidemotoNakada/cassandra-udf,pthomaid/cassandra,AtwooTM/cassandra,ben-manes/cassandra,spodkowinski/cassandra,MasahikoSawada/cassandra,juiceblender/cassandra,thobbs/cassandra,Instagram/cassandra,Bj0rnen/cassandra,clohfink/cassandra,matthewtt/cassandra_read,gdusbabek/cassandra,adejanovski/cassandra,chbatey/cassandra-1,dprguiuc/Cassandra-Wasef,blambov/cassandra,iburmistrov/Cassandra,HidemotoNakada/cassandra-udf,sluk3r/cassandra,project-zerus/cassandra,ibmsoe/cassandra,mshuler/cassandra,tommystendahl/cassandra,christian-esken/cassandra,szhou1234/cassandra,yonglehou/cassandra,sluk3r/cassandra,tongjixianing/projects,aweisberg/cassandra,krummas/cassandra,michaelsembwever/cassandra,heiko-braun/cassandra,guard163/cassandra,knifewine/cassandra,qinjin/mdtc-cassandra,tjake/cassandra,gdusbabek/cassandra,jasonstack/cassandra,dongjiaqiang/cassandra,krummas/cassandra,mgmuscari/cassandra-cdh4,sriki77/cassandra,sriki77/cassandra,driftx/cassandra,yukim/cassandra,jrwest/cassandra,mashuai/Cassandra-Research,michaelmior/cassandra,mkjellman/cassandra,Stratio/cassandra,stef1927/cassandra,stef1927/cassandra,dongjiaqiang/cassandra,codefollower/Cassandra-Research,leomrocha/cassandra,dkua/cassandra,rmarchei/cassandra,driftx/cassandra,emolsson/cassandra,fengshao0907/Cassandra-Research,miguel0afd/cassandra-cqlMod,hhorii/cassandra,codefollower/Cassandra-Research,RyanMagnusson/cassandra,swps/cassandra,nitsanw/cassandra,xiongzheng/Cassandra-Research,nvoron23/cassandra,mgmuscari/cassandra-cdh4,dkua/cassandra,jbellis/cassandra,JeremiahDJordan/cassandra,RyanMagnusson/cassandra,ptnapoleon/cassandra,adejanovski/cassandra,mambocab/cassandra,sivikt/cassandra,blambov/cassandra,fengshao0907/Cassandra-Research,joesiewert/cassandra,ejankan/cassandra,jeromatron/cassandra,boneill42/cassandra,carlyeks/cassandra,ben-manes/cassandra,thelastpickle/cassandra,taigetco/cassandra_read,ben-manes/cassandra,sharvanath/cassandra,GabrielNicolasAvellaneda/cassandra,helena/cassandra,DikangGu/cassandra,rdio/cassandra,WorksApplications/cassandra,hengxin/cassandra,hengxin/cassandra,asias/cassandra,bpupadhyaya/cassandra,nakomis/cassandra,Imran-C/cassandra,sivikt/cassandra,DICL/cassandra,sbtourist/cassandra,nlalevee/cassandra,sayanh/ViewMaintenanceCassandra,kgreav/cassandra,mashuai/Cassandra-Research,sayanh/ViewMaintenanceSupport,MasahikoSawada/cassandra,aweisberg/cassandra,iamaleksey/cassandra,mashuai/Cassandra-Research,ibmsoe/cassandra,spodkowinski/cassandra,beobal/cassandra,weipinghe/cassandra,guanxi55nba/db-improvement,project-zerus/cassandra,bpupadhyaya/cassandra,iburmistrov/Cassandra,weipinghe/cassandra,exoscale/cassandra,qinjin/mdtc-cassandra,WorksApplications/cassandra,codefollower/Cassandra-Research,apache/cassandra,ifesdjeen/cassandra,carlyeks/cassandra,jasonstack/cassandra,instaclustr/cassandra,leomrocha/cassandra,mt0803/cassandra,nlalevee/cassandra,szhou1234/cassandra,chaordic/cassandra,scylladb/scylla-tools-java,jasonstack/cassandra,yonglehou/cassandra,spodkowinski/cassandra,shawnkumar/cstargraph,jrwest/cassandra,swps/cassandra,iamaleksey/cassandra,jasonwee/cassandra,mheffner/cassandra-1,jasobrown/cassandra,thelastpickle/cassandra,jasobrown/cassandra,caidongyun/cassandra,xiongzheng/Cassandra-Research,ifesdjeen/cassandra,yhnishi/cassandra,rogerchina/cassandra,iamaleksey/cassandra,lalithsuresh/cassandra-c3,cooldoger/cassandra,lalithsuresh/cassandra-c3,nvoron23/cassandra,HidemotoNakada/cassandra-udf,whitepages/cassandra,tommystendahl/cassandra,mkjellman/cassandra,guard163/cassandra,tongjixianing/projects,pkdevbox/cassandra,fengshao0907/cassandra-1,wreda/cassandra,phact/cassandra,macintoshio/cassandra,beobal/cassandra,tjake/cassandra,jeffjirsa/cassandra,jbellis/cassandra,tommystendahl/cassandra,Instagram/cassandra,nitsanw/cassandra,aweisberg/cassandra,jasobrown/cassandra,blerer/cassandra,WorksApplications/cassandra,guanxi55nba/key-value-store,scaledata/cassandra,exoscale/cassandra,adelapena/cassandra,GabrielNicolasAvellaneda/cassandra,boneill42/cassandra,Instagram/cassandra,pallavi510/cassandra,MasahikoSawada/cassandra,juiceblender/cassandra,pcmanus/cassandra,blerer/cassandra,pauloricardomg/cassandra,michaelsembwever/cassandra,instaclustr/cassandra,caidongyun/cassandra,bpupadhyaya/cassandra,mike-tr-adamson/cassandra,bcoverston/cassandra,pauloricardomg/cassandra,sedulam/CASSANDRA-12201,regispl/cassandra,aboudreault/cassandra,hhorii/cassandra,xiongzheng/Cassandra-Research,Stratio/cassandra,shawnkumar/cstargraph,kgreav/cassandra,Jollyplum/cassandra,bdeggleston/cassandra,sedulam/CASSANDRA-12201,mambocab/cassandra,vramaswamy456/cassandra,adejanovski/cassandra,belliottsmith/cassandra,jkni/cassandra,likaiwalkman/cassandra,michaelmior/cassandra,blerer/cassandra,guanxi55nba/db-improvement,ibmsoe/cassandra,regispl/cassandra,nvoron23/cassandra,blambov/cassandra,knifewine/cassandra,vramaswamy456/cassandra,jsanda/cassandra,AtwooTM/cassandra,shawnkumar/cstargraph,strapdata/cassandra,sriki77/cassandra,rmarchei/cassandra,newrelic-forks/cassandra,mike-tr-adamson/cassandra,guard163/cassandra,wreda/cassandra,sayanh/ViewMaintenanceSupport,qinjin/mdtc-cassandra,scylladb/scylla-tools-java,jeffjirsa/cassandra,nakomis/cassandra,knifewine/cassandra,pkdevbox/cassandra,scylladb/scylla-tools-java,apache/cassandra,strapdata/cassandra,aboudreault/cassandra,stef1927/cassandra,whitepages/cassandra,Stratio/stratio-cassandra,bmel/cassandra,mheffner/cassandra-1,bdeggleston/cassandra,tjake/cassandra,dprguiuc/Cassandra-Wasef,spodkowinski/cassandra,yukim/cassandra,strapdata/cassandra,Instagram/cassandra,pkdevbox/cassandra,aarushi12002/cassandra,fengshao0907/cassandra-1,swps/cassandra,iamaleksey/cassandra,mshuler/cassandra,yhnishi/cassandra,christian-esken/cassandra,mkjellman/cassandra,weideng1/cassandra,aureagle/cassandra,helena/cassandra,JeremiahDJordan/cassandra,sharvanath/cassandra,jkni/cassandra,josh-mckenzie/cassandra,Stratio/stratio-cassandra,pauloricardomg/cassandra,bcoverston/cassandra,rdio/cassandra,Jaumo/cassandra,yanbit/cassandra,jbellis/cassandra,LatencyUtils/cassandra-stress2,tongjixianing/projects,mike-tr-adamson/cassandra,snazy/cassandra,aarushi12002/cassandra,clohfink/cassandra,EnigmaCurry/cassandra,kgreav/cassandra,pcmanus/cassandra,jrwest/cassandra,cooldoger/cassandra,guanxi55nba/key-value-store,modempachev4/kassandra,ollie314/cassandra,jasobrown/cassandra,DavidHerzogTU-Berlin/cassandraToRun,DICL/cassandra,helena/cassandra,mt0803/cassandra,fengshao0907/Cassandra-Research,macintoshio/cassandra,szhou1234/cassandra,GabrielNicolasAvellaneda/cassandra,ollie314/cassandra,wreda/cassandra,aureagle/cassandra,juiceblender/cassandra,jeromatron/cassandra,pofallon/cassandra,nutbunnies/cassandra,driftx/cassandra,sharvanath/cassandra,tjake/cassandra,tommystendahl/cassandra,EnigmaCurry/cassandra,lalithsuresh/cassandra-c3,kgreav/cassandra,newrelic-forks/cassandra,taigetco/cassandra_read,EnigmaCurry/cassandra,LatencyUtils/cassandra-stress2,darach/cassandra,regispl/cassandra,mheffner/cassandra-1,chbatey/cassandra-1,pofallon/cassandra,guanxi55nba/db-improvement,scaledata/cassandra,guanxi55nba/key-value-store,jkni/cassandra,instaclustr/cassandra,a-buck/cassandra,beobal/cassandra,pofallon/cassandra,leomrocha/cassandra,Jollyplum/cassandra,Stratio/stratio-cassandra,pcmanus/cassandra,gdusbabek/cassandra,nutbunnies/cassandra,blerer/cassandra,dprguiuc/Cassandra-Wasef,sayanh/ViewMaintenanceCassandra,sivikt/cassandra,heiko-braun/cassandra,taigetco/cassandra_read,ptuckey/cassandra,kangkot/stratio-cassandra,matthewtt/cassandra_read,miguel0afd/cassandra-cqlMod,ifesdjeen/cassandra,belliottsmith/cassandra,DavidHerzogTU-Berlin/cassandra,yangzhe1991/cassandra,dkua/cassandra,snazy/cassandra,WorksApplications/cassandra,ifesdjeen/cassandra,yangzhe1991/cassandra,rogerchina/cassandra,exoscale/cassandra,phact/cassandra,Bj0rnen/cassandra,adelapena/cassandra,LatencyUtils/cassandra-stress2,rdio/cassandra,matthewtt/cassandra_read,belliottsmith/cassandra,asias/cassandra,bdeggleston/cassandra,josh-mckenzie/cassandra,hengxin/cassandra,ejankan/cassandra,strapdata/cassandra,mgmuscari/cassandra-cdh4,mt0803/cassandra,thobbs/cassandra,weideng1/cassandra,Stratio/stratio-cassandra,vaibhi9/cassandra,yhnishi/cassandra,pcn/cassandra-1,jrwest/cassandra,michaelsembwever/cassandra,a-buck/cassandra,rmarchei/cassandra,instaclustr/cassandra,chaordic/cassandra,Imran-C/cassandra,DICL/cassandra,scaledata/cassandra,belliottsmith/cassandra,ptuckey/cassandra,newrelic-forks/cassandra,yanbit/cassandra,scylladb/scylla-tools-java,iburmistrov/Cassandra,DavidHerzogTU-Berlin/cassandra,Stratio/stratio-cassandra,rogerchina/cassandra