doc(examples): make some edits
doc(examples): make some edits

postgraphql/postgraphql,nbushak/postgraphql,postgraphql/postgraphql,postgraphql/postgraphql,calebmer/postgraphql,nbushak/postgraphql,nbushak/postgraphql,calebmer/postgraphql,nbushak/postgraphql,calebmer/postgraphql,calebmer/postgraphql,postgraphql/postgraphql