Update textbook.fr.md

00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/44.quantum-mechanics/40.n4/10.main/textbook.fr.md

@@ -3,6 +3,9 @@ title: Mécanique quantique non relativiste niveau 4
 published: true
 routable: true
 visible: false
+lessons:
+    - slug: quantum-mechanics-linear-4
+      order: 1
 ---
 
 Mécanique quantique niveau 4, main