diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6f68bc01d09c58541ec08b7d07ca85041265b38c..8b27a3d3a85d5cdb59636b5afddae6e16ac9a368 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,7 +1,10 @@
 # Objectifs
 
 ## Session 1
-- add tuto on how to connect to the Rstudio serveur hosted at the IFB
+- add tuto on how to connect to the Rstudio server hosted at the IFB
+
+## All sessions
+- Write summary of all the commands at the end (what should have been written in the .R file during the session)
 
 ## Supplementary exercices
 - Add summary of all code used in the session at the end of the sesssion