adds comment to project readme

projects/README.rst

@@ -92,3 +92,12 @@ regularly.
    (c) confirm with supervisor that your solution respects data archiving
    regulations.
 
+5. **Track contributions**
+
+   Ideally your project will end in a publication.
+   During the related authorship/acknowledgement discussion it will help
+   if you keep notes, during the project, of who contributed and how to
+   the project.
+   This is particularly relevant in the case when functionality is coded
+   into outside repositories (i.e. not shown by `git log` executed in
+   your project repository).