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Update 00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/20.n2/20.overview/cheatsheet.fr.md

00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/42.relativistic-mechanics/20.n2/20.overview/cheatsheet.fr.md

@@ -8,6 +8,6 @@ lessons:
       order: 1
 ---
 
-#### Les Relativités, n2, synthèse
+#### Mécaniques relativistes, n2, synthèse
 
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