Update cheatsheet.fr.md

5 years ago · cce09f43c3
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--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/20.n2/20.overview/cheatsheet.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/20.n2/20.overview/cheatsheet.fr.md
@ -8,6 +8,13 @@ lessons:
      order: 1
    - slug: relativity-linear-2
      order: 2
+    - slug: relativity-123-overview-panorama
+      order: 2
+    - slug: relativity-234-overview-panorama
+      order: 1
+---
+
+Les relativités niveau 2 : main
 ---

 #### Mécaniques relativistes, n2, synthèse