update query parameter formatting docs
update query parameter formatting docs

issue #326

ramiro/pymssql,ramiro/pymssql,klothe/pymssql,ramiro/pymssql,klothe/pymssql,pymssql/pymssql,pymssql/pymssql,Aloomaio/pymssql,Aloomaio/pymssql,klothe/pymssql,JimDennis/pymssql,JimDennis/pymssql,Aloomaio/pymssql,JimDennis/pymssql