minor doc fix
minor doc fix

Change-Id: I6fcfe789f69a2326b88039ad1d9eab615f16b0b0

johnkit/vtk-dev,ashray/VTK-EVM,keithroe/vtkoptix,keithroe/vtkoptix,ashray/VTK-EVM,msmolens/VTK,ashray/VTK-EVM,candy7393/VTK,msmolens/VTK,jmerkow/VTK,jmerkow/VTK,gram526/VTK,hendradarwin/VTK,mspark93/VTK,jmerkow/VTK,SimVascular/VTK,msmolens/VTK,msmolens/VTK,sumedhasingla/VTK,jmerkow/VTK,hendradarwin/VTK,candy7393/VTK,msmolens/VTK,keithroe/vtkoptix,SimVascular/VTK,jmerkow/VTK,SimVascular/VTK,johnkit/vtk-dev,johnkit/vtk-dev,mspark93/VTK,gram526/VTK,msmolens/VTK,sankhesh/VTK,johnkit/vtk-dev,candy7393/VTK,sumedhasingla/VTK,candy7393/VTK,hendradarwin/VTK,ashray/VTK-EVM,sankhesh/VTK,mspark93/VTK,mspark93/VTK,sankhesh/VTK,candy7393/VTK,mspark93/VTK,gram526/VTK,keithroe/vtkoptix,SimVascular/VTK,demarle/VTK,sumedhasingla/VTK,gram526/VTK,sumedhasingla/VTK,sumedhasingla/VTK,mspark93/VTK,sankhesh/VTK,candy7393/VTK,sankhesh/VTK,ashray/VTK-EVM,keithroe/vtkoptix,sankhesh/VTK,demarle/VTK,jmerkow/VTK,msmolens/VTK,johnkit/vtk-dev,gram526/VTK,candy7393/VTK,sumedhasingla/VTK,hendradarwin/VTK,sankhesh/VTK,sumedhasingla/VTK,johnkit/vtk-dev,hendradarwin/VTK,keithroe/vtkoptix,gram526/VTK,SimVascular/VTK,candy7393/VTK,demarle/VTK,demarle/VTK,gram526/VTK,mspark93/VTK,jmerkow/VTK,keithroe/vtkoptix,keithroe/vtkoptix,demarle/VTK,sankhesh/VTK,ashray/VTK-EVM,SimVascular/VTK,demarle/VTK,SimVascular/VTK,ashray/VTK-EVM,demarle/VTK,jmerkow/VTK,demarle/VTK,SimVascular/VTK,sumedhasingla/VTK,msmolens/VTK,hendradarwin/VTK,gram526/VTK,johnkit/vtk-dev,ashray/VTK-EVM,mspark93/VTK,hendradarwin/VTK