message: doc review: use :class: to link to the ref manual, rollback link to the user manual
diff: @@ -378,7 +378,7 @@ Example from a point cloud combined with DistanceToMeasure
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  Combining with DistanceToMeasure, one can compute the DTM-filtration of a point set, as in `this notebook <https://github.com/GUDHI/TDA-tutorial/blob/master/Tuto-GUDHI-DTM-filtrations.ipynb>`_.
  -Remark that `DTM Rips Complex (user manual) <rips_complex_user.html#dtm-rips-complex>`_ class provides exactly this function.
  +Remark that `DTMRipsComplex <rips_complex_user.html#dtm-rips-complex>`_ class provides exactly this function.
  .. testcode::
  @@ -403,7 +403,7 @@ The output is:
  DTM Rips Complex
  ----------------
  -`DTMRipsComplex (reference manual) <rips_complex_ref.html#dtm-rips-complex-reference-manual>`_ builds a simplicial complex from a point set or a full distance matrix (in the form of ndarray), as described in the above example.
  +:class:`~gudhi.dtm_rips_complex.DTMRipsComplex` builds a simplicial complex from a point set or a full distance matrix (in the form of ndarray), as described in the above example.
  This class constructs a weighted Rips complex giving larger weights to outliers, which reduces their impact on the persistence diagram. See `this notebook <https://github.com/GUDHI/TDA-tutorial/blob/master/Tuto-GUDHI-DTM-filtrations.ipynb>`_ for some experiments.
  .. testcode::
  