Update topic.en.md

d07f9d60 · Claude Meny · e92df5f4 · d07f9d60
Commit d07f9d60 authored Mar 23, 2021 by Claude Meny
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--- a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/03.physical-system-versus-optical-system/topic.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/03.physical-system-versus-optical-system/topic.en.md
 ---
 title: 'Physical systems versus optical systems '
-published: false
+published: true
+routable: true
 visible: false
 ---