Fix sample requests #470
Fix sample requests #470

In URL, geography POINT and POLYGON literals take the form of geography'POINT(...)'
and geography'POLYGON(...)'

ODataOrg/odataorg.github.io,ODataOrg/odataorg.github.io,OData/odataorg.github.io,ralfhandl/odataorg.github.io,OData/odataorg.github.io,ralfhandl/odataorg.github.io