Update collab_proj_course.rst

src/content/collab_proj_course.rst

@@ -25,7 +25,10 @@ Interested participants from academia and industry are most welcome to apply for
 * Sucessfully completeing the course corresponds to 9 ECTS points.
 * Teacher: `Rickard Armiento <https://liu.se/en/employee/ricar47>`__, associate professor in Physical Modelling and head of the Materials Design and Informatics unit at Linköping University.
 * Course homepage: https://mdi.gitlab-pages.liu.se/collab_proj_course.html
+* For any questions or concerns: contact `Rickard Armiento <https://liu.se/en/employee/ricar47>`__, rickard.armiento [at] liu.se
 
+*Note: it is possible there may be a course fee, depending on whether you are a registered student at a (SeSE-connected) Swedish university, foreign university, postdoc, industry participant, or something else. Please let us know where you are from when registering, and we will sort this out.*
+  
 **Course contents at a glance**
 
 * Evolve your skills from programming → software development → collaborative software engineering.