VTk-1967 - use same htmlPropsFilter as person-listing to allow h2, h3 in additional-content
VTk-1967 - use same htmlPropsFilter as person-listing to allow h2, h3 in additional-content

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk