Fix broken markup, improve wording.
Fix broken markup, improve wording.

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