diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/30.n3/10.main/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/30.n3/10.main/textbook.fr.md
index 9b2a17b03..455a71d0c 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/30.n3/10.main/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/30.n3/10.main/textbook.fr.md
@@ -12,4 +12,6 @@ lessons:
       order: 2
 ---
 
-Les relativités niveau 3, main
\ No newline at end of file
+#### Les Relativités, n3, main
+
+--------------------------------------
\ No newline at end of file