Fixing documentation python notebook

example/Numerics/Sussman_redistancing/example_sussman_images_2D/main.cpp

@@ -74,7 +74,10 @@
  * * Setting the output path and creating an output folder
  * This time, we also set the input path and name of the binary image that we want to load onto the grid. For this
  * example we provide 3 simple example images. The original (e.g. tiff) image has been converted into -1 / +1 values.
- * A jupyter notebook that does this can be found here: @ref image_binary_conversion/image2binary_dolphin.ipynb
+ * A jupyter notebook that does this 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
  * Optionally, we can define the grid dimensionality and some indices for better code readability later on.
  * * \p x: First dimension
  * * \p y: Second dimension