diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/20.n1/20.fr/10.main/textbook.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/20.n1/20.fr/10.main/textbook.fr.md
index 076f141a8..a97d44e24 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/20.n1/20.fr/10.main/textbook.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/40.classical-mechanics/20.n1/20.fr/10.main/textbook.fr.md
@@ -12,4 +12,6 @@ lessons:
       order: 2
 ---
 
-### Mécanique classique, n1, main
\ No newline at end of file
+#### Mécanique classique, n1, main
+
+------------------------------------
\ No newline at end of file