Update default.fr.md

01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/04.use-of-basic-optical-elements/01.plane-refracting-surface/04.plane-refracting-surface-parallel-1/default.fr.md

@@ -1,5 +1,7 @@
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 title: 'nouveau cours : parallèle 1'
+published: false
+visible: false
 hero_classes: ''
 hero_image: ''
 content: