Add some examples.
Add some examples.

royc1/gpdb,chrishajas/gpdb,xuegang/gpdb,adam8157/gpdb,ashwinstar/gpdb,xinzweb/gpdb,janebeckman/gpdb,rvs/gpdb,Quikling/gpdb,xuegang/gpdb,yuanzhao/gpdb,tpostgres-projects/tPostgres,0x0FFF/gpdb,xuegang/gpdb,royc1/gpdb,oberstet/postgres-xl,royc1/gpdb,janebeckman/gpdb,chrishajas/gpdb,Quikling/gpdb,lintzc/gpdb,postmind-net/postgres-xl,lisakowen/gpdb,pavanvd/postgres-xl,techdragon/Postgres-XL,ahachete/gpdb,yuanzhao/gpdb,Chibin/gpdb,tpostgres-projects/tPostgres,chrishajas/gpdb,ashwinstar/gpdb,CraigHarris/gpdb,rvs/gpdb,edespino/gpdb,kaknikhil/gpdb,lintzc/gpdb,CraigHarris/gpdb,Quikling/gpdb,rvs/gpdb,lisakowen/gpdb,greenplum-db/gpdb,chrishajas/gpdb,arcivanov/postgres-xl,kaknikhil/gpdb,xuegang/gpdb,chrishajas/gpdb,ahachete/gpdb,Postgres-XL/Postgres-XL,janebeckman/gpdb,yazun/postgres-xl,xuegang/gpdb,Quikling/gpdb,oberstet/postgres-xl,lisakowen/gpdb,ashwinstar/gpdb,lintzc/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,janebeckman/gpdb,kmjungersen/PostgresXL,rvs/gpdb,greenplum-db/gpdb,lisakowen/gpdb,ashwinstar/gpdb,Quikling/gpdb,50wu/gpdb,Quikling/gpdb,cjcjameson/gpdb,50wu/gpdb,adam8157/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,adam8157/gpdb,rvs/gpdb,jmcatamney/gpdb,zaksoup/gpdb,lisakowen/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,edespino/gpdb,ovr/postgres-xl,cjcjameson/gpdb,zeroae/postgres-xl,Chibin/gpdb,50wu/gpdb,50wu/gpdb,jmcatamney/gpdb,cjcjameson/gpdb,snaga/postgres-xl,xinzweb/gpdb,ahachete/gpdb,0x0FFF/gpdb,arcivanov/postgres-xl,greenplum-db/gpdb,adam8157/gpdb,rvs/gpdb,Postgres-XL/Postgres-XL,oberstet/postgres-xl,lintzc/gpdb,lisakowen/gpdb,Chibin/gpdb,jmcatamney/gpdb,0x0FFF/gpdb,Quikling/gpdb,50wu/gpdb,rvs/gpdb,zaksoup/gpdb,0x0FFF/gpdb,50wu/gpdb,royc1/gpdb,greenplum-db/gpdb,zaksoup/gpdb,Postgres-XL/Postgres-XL,kmjungersen/PostgresXL,kaknikhil/gpdb,ahachete/gpdb,edespino/gpdb,rvs/gpdb,Chibin/gpdb,zaksoup/gpdb,yuanzhao/gpdb,adam8157/gpdb,yazun/postgres-xl,edespino/gpdb,snaga/postgres-xl,kaknikhil/gpdb,tpostgres-projects/tPostgres,xinzweb/gpdb,chrishajas/gpdb,50wu/gpdb,greenplum-db/gpdb,CraigHarris/gpdb,Chibin/gpdb,tpostgres-projects/tPostgres,0x0FFF/gpdb,ovr/postgres-xl,royc1/gpdb,ashwinstar/gpdb,arcivanov/postgres-xl,snaga/postgres-xl,zaksoup/gpdb,xuegang/gpdb,yuanzhao/gpdb,xuegang/gpdb,ahachete/gpdb,50wu/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,edespino/gpdb,zaksoup/gpdb,yuanzhao/gpdb,lisakowen/gpdb,rvs/gpdb,janebeckman/gpdb,janebeckman/gpdb,royc1/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,Quikling/gpdb,kmjungersen/PostgresXL,kaknikhil/gpdb,pavanvd/postgres-xl,xinzweb/gpdb,yazun/postgres-xl,zaksoup/gpdb,cjcjameson/gpdb,lintzc/gpdb,zeroae/postgres-xl,arcivanov/postgres-xl,CraigHarris/gpdb,lintzc/gpdb,pavanvd/postgres-xl,edespino/gpdb,xinzweb/gpdb,xuegang/gpdb,ovr/postgres-xl,xinzweb/gpdb,tpostgres-projects/tPostgres,rvs/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,adam8157/gpdb,lintzc/gpdb,snaga/postgres-xl,xinzweb/gpdb,techdragon/Postgres-XL,yuanzhao/gpdb,yazun/postgres-xl,ahachete/gpdb,Chibin/gpdb,Postgres-XL/Postgres-XL,postmind-net/postgres-xl,CraigHarris/gpdb,snaga/postgres-xl,0x0FFF/gpdb,0x0FFF/gpdb,edespino/gpdb,edespino/gpdb,janebeckman/gpdb,edespino/gpdb,techdragon/Postgres-XL,chrishajas/gpdb,chrishajas/gpdb,zeroae/postgres-xl,lintzc/gpdb,edespino/gpdb,janebeckman/gpdb,Chibin/gpdb,cjcjameson/gpdb,Postgres-XL/Postgres-XL,oberstet/postgres-xl,royc1/gpdb,royc1/gpdb,ovr/postgres-xl,lintzc/gpdb,adam8157/gpdb,xuegang/gpdb,jmcatamney/gpdb,xinzweb/gpdb,ahachete/gpdb,Quikling/gpdb,zaksoup/gpdb,ovr/postgres-xl,cjcjameson/gpdb,yuanzhao/gpdb,zeroae/postgres-xl,jmcatamney/gpdb,kaknikhil/gpdb,postmind-net/postgres-xl,CraigHarris/gpdb,kmjungersen/PostgresXL,kaknikhil/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,greenplum-db/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,pavanvd/postgres-xl,cjcjameson/gpdb,cjcjameson/gpdb,Chibin/gpdb,yazun/postgres-xl,postmind-net/postgres-xl,yuanzhao/gpdb,CraigHarris/gpdb,zeroae/postgres-xl,cjcjameson/gpdb,CraigHarris/gpdb,Chibin/gpdb,techdragon/Postgres-XL,postmind-net/postgres-xl,Quikling/gpdb,cjcjameson/gpdb,Chibin/gpdb,ahachete/gpdb,adam8157/gpdb,janebeckman/gpdb,arcivanov/postgres-xl,kmjungersen/PostgresXL,janebeckman/gpdb,jmcatamney/gpdb