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 Library overview
 ================
 
 Tamaas is mainly composed of three components:
 
 - Random surface generation procedures
 - Model state objects and operators
 - Contact solving procedures
 
 These parts are meant to be independent as well as inter-operable. The first one
 provides an interface to several stochastic surface generation algorithms
 described in :doc:`rough_surfaces`. The second provides an interface to a state
 object :py:class:`Model <tamaas._tamaas.Model>` (and C++ class
 :cpp:class:`tamaas::Model`) as well as integral operators based on the state
 object (see :doc:`model`). Finally, the third part provides contact solving
 routines that make use of the integral operators for performance (see
 :doc:`contact`).
 
 .. _sect-tutorials:
 
 Tutorials
 ---------
 
 The following tutorial notebooks can also be used to learn about Tamaas:
 
 - Elastic Contact (`live notebook
   <https://mybinder.org/v2/git/https%3A%2F%2Fc4science.ch%2Fsource%2Ftamaas_tutorials.git/HEAD?filepath=elastic_contact.ipynb>`_,
   `notebook viewer
-  <https://c4science.ch/source/tamaas_tutorials/browse/master/elastic_contact.ipynb>`_,
+  <https://nbviewer.jupyter.org/urls/c4science.ch/source/tamaas_tutorials/browse/master/elastic_contact.ipynb/%3Fview%3Draw>`_,
   `source <https://c4science.ch/source/tamaas_tutorials/>`_)
 - Rough Surfaces (`live notebook
   <https://mybinder.org/v2/git/https%3A%2F%2Fc4science.ch%2Fsource%2Ftamaas_tutorials.git/HEAD?filepath=rough_surfaces.ipynb>`_,
   `notebook viewer
-  <https://c4science.ch/source/tamaas_tutorials/browse/master/rough_surfaces.ipynb>`_,
+  <https://nbviewer.jupyter.org/urls/c4science.ch/source/tamaas_tutorials/browse/master/rough_surfaces.ipynb/%3Fview%3Draw>`_,
   `source <https://c4science.ch/source/tamaas_tutorials/>`_)
 
 Changelog
 ---------
 
 The changelog can be consulted `here <https://c4science.ch/source/tamaas/browse/master/CHANGELOG.md?as=remarkup>`_.
 
 
 Seeking help
 ------------
 
 You can ask your questions on `c4science <https://c4science.ch>`_ using this
 `form
 <https://c4science.ch/maniphest/task/edit/?owner=frerot&projectPHIDs=tamaas&view=public>`_.
 If you do not have an account, you can create one `on this page <https://c4science.ch/auth/start/?next=%2F>`_.
 
 
 Contribution
 ------------
 
 Contributions to Tamaas are welcome, whether they are code, bug, or
 documentation related.
 
 Code
 ....
 
 To contribute code to Tamaas, you can use `Arcanist
 <https://secure.phabricator.com/book/phabricator/article/arcanist/>`_ to send
 code differentials. In a nutshell, the process to contribute is:
 
 1. Create a branch for the modifications you wish to submit
 2. Work on your branch (commits + run tests)
 3. ``arc diff`` to send your code for review
 4. Commit any requested changes
 5. ``arc diff`` to send your modifications
 
 For reviewers:
 
 1. Checkout a code differential using ``arc patch D???``
 2. Accept the code differential on `c4science <https://c4science.ch>`_.
 3. ``arc land`` to merge the differential
 4. Profit with ``arc anoid``
 
 Bug reports
 ...........
 
 You can also contribute to Tamaas by reporting any bugs you find `here
 <https://c4science.ch/maniphest/task/edit/?owner=frerot&projectPHIDs=tamaas&view=public>`_
 if you have an account on `c4science <https://c4science.ch>`_.