diff --git a/journal/Readme.md b/journal/Readme.md
index 02f3a62b4a2bb24430940e415337b764c7f7b4c1..e2497329b794b9f6949a3dfdaebfe9da8f6048f8 100644
--- a/journal/Readme.md
+++ b/journal/Readme.md
@@ -9,4 +9,7 @@ EN
 Reserved for the Mooc's logbook
 
 "*" and "_" both make text italic
-"**" and "__" both make text bold
\ No newline at end of file
+"**" and "__" both make text bold
+
+# Replicable analysis best practise
+- Never alter the data file manually, data should always be edited by code !
\ No newline at end of file