Create pull_request_template.md

Author: nicolas-f

Diff for: .github/pull_request_template.md

@@ -0,0 +1,19 @@
+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: [email protected]
+