DOCS: fix typos in PostGIS (#2447)
DOCS: fix typos in PostGIS (#2447)


rvs/gpdb,adam8157/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,edespino/gpdb,Chibin/gpdb,janebeckman/gpdb,edespino/gpdb,lisakowen/gpdb,edespino/gpdb,50wu/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,lisakowen/gpdb,xinzweb/gpdb,xinzweb/gpdb,Quikling/gpdb,kaknikhil/gpdb,xinzweb/gpdb,jmcatamney/gpdb,50wu/gpdb,Quikling/gpdb,Chibin/gpdb,ashwinstar/gpdb,Chibin/gpdb,rvs/gpdb,lisakowen/gpdb,edespino/gpdb,lisakowen/gpdb,greenplum-db/gpdb,adam8157/gpdb,Chibin/gpdb,rvs/gpdb,Chibin/gpdb,lisakowen/gpdb,Chibin/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,50wu/gpdb,rvs/gpdb,ashwinstar/gpdb,Quikling/gpdb,yuanzhao/gpdb,50wu/gpdb,ashwinstar/gpdb,adam8157/gpdb,rvs/gpdb,janebeckman/gpdb,cjcjameson/gpdb,edespino/gpdb,adam8157/gpdb,yuanzhao/gpdb,Quikling/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,xinzweb/gpdb,Chibin/gpdb,kaknikhil/gpdb,xinzweb/gpdb,ashwinstar/gpdb,lisakowen/gpdb,adam8157/gpdb,50wu/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,xinzweb/gpdb,adam8157/gpdb,janebeckman/gpdb,lisakowen/gpdb,Quikling/gpdb,adam8157/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,edespino/gpdb,jmcatamney/gpdb,Chibin/gpdb,rvs/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,adam8157/gpdb,Chibin/gpdb,50wu/gpdb,janebeckman/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,Quikling/gpdb,ashwinstar/gpdb,janebeckman/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,Quikling/gpdb,xinzweb/gpdb,50wu/gpdb,lisakowen/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,edespino/gpdb,janebeckman/gpdb,Chibin/gpdb,jmcatamney/gpdb,rvs/gpdb,greenplum-db/gpdb,janebeckman/gpdb,janebeckman/gpdb,Quikling/gpdb,cjcjameson/gpdb,rvs/gpdb,edespino/gpdb,Quikling/gpdb,janebeckman/gpdb,greenplum-db/gpdb,50wu/gpdb,rvs/gpdb,yuanzhao/gpdb,rvs/gpdb,yuanzhao/gpdb,janebeckman/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,xinzweb/gpdb,Quikling/gpdb,edespino/gpdb,jmcatamney/gpdb,edespino/gpdb,ashwinstar/gpdb