diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/30.n3/10.brainstorming/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/30.n3/10.brainstorming/textbook.en.md
index 2ce22ed81..fc6ac9175 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/30.n3/10.brainstorming/textbook.en.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/30.classical-mechanics/30.n3/10.brainstorming/textbook.en.md
@@ -18,4 +18,6 @@ This level 3 brainstorming can be seen in its multilingual version at:
 
 https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/classical-mechanics/n3/brainstorming
 
---------------------------------
\ No newline at end of file
+----------------------------------------
+
+### Brainstorming
\ No newline at end of file