Update textbook.fr.md

00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/10.n1/12.en/textbook.fr.md

@@ -3,12 +3,16 @@ title: Brainstorming on the mathematical tools required at each level
 published: true
 routable: true
 visible: false
+---
+
+<!----------------------------------------------------
 lessons:
     - slug: define-g12-mathematical-tools
       order: 2
     - slug: define-1-mathematical-tools-polyglot
       order: 3
----
+----------------------------------------------------->
+
 
 #### Define the mathematical tools required at level 1