procedure for using heptagon in ISAE roomsé

README.md

@@ -20,7 +20,10 @@ The project is updated before each lab session.
 * lecture examples: `lecture.ept`
 * training sessions interface: `labtXX.ept` where XX is the number of the session
 
-
+## Using heptagon:
+At first session, a ISAE-supaero room, write in a terminal
+`echo "module load opam/2.1.4" >> ~/.bashrc`
+and open a new terminal window.
 
 ## Lecture workflow
 For each example presented in the lecture, simulate the node: