adding donate button
adding donate button

patriciogonzalezvivo/glslViewer,jjhoughton/glslViewer,kevindeland/glslViewer,kevindeland/glslViewer,jjhoughton/glslViewer,jjhoughton/glslViewer,dorald/glslViewer,dorald/glslViewer,patriciogonzalezvivo/glslViewer