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+Description of the pull request:
+
+
+If applicable a reference to a related issue:
+
+
+For external contributors, this pull request will not be merged until the following document are sent.
+
+Contributor licence agreement
+
+For legal reasons, if contributors want their contribution to be merged with the I-Simpa code base, they are invited to agree with a Contributor License Agreement:
+
+- Entity Contributor License Agreement, for institutions 
+https://i-simpa.ifsttar.fr/community/contribute/entity-cla/
+- Individual Contributor License Agreement, for individual contributors 
+https://i-simpa.ifsttar.fr/community/contribute/individual-cla/
+
+Contributors must fill one of these forms and send the signed version by mail at: I-Simpa@ifsttar.fr
+