Fixing file link jupiter

example/Numerics/Sussman_redistancing/example_sussman_images_3D/main.cpp

@@ -10,7 +10,10 @@
  * # Example for loading a 3D object from an image stack (binary) onto a grid and applying Sussman redistancing #
  *
  * In this example the image stack is read from a binary file. A jupyter notebook that converts tiff-images into
- * -1/+1 binary files can be found here: @ref image_binary_conversion/image2binary_dolphin.ipynb.
+ * -1/+1 binary files can be found here:
+ * @htmlonly
+ * <a href='http://openfpm.mpi-cbg.de/web/images/examples/sussman_redistancing/image2binary_dolphin.ipynb'>image2binary_dolphin.ipynb</a>".
+ * @endhtmlonly
  * A 3D cartesian grid with same dimensions as image
  * stack is constructed. The grid resolution can be either 1 grid node for each pixel in x and y) or the resolution
  * can be higher/lower as the image stack. This can be achieved by setting the refinement factor to a value of choice in