Update textbook.en.md

b24911eb · Claude Meny · 32b438cf · b24911eb
Commit b24911eb authored Mar 15, 2021 by Claude Meny
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textbook.en.md ...s-systems/40.spherical-coordinates/10.main/textbook.en.md +1 -3

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--- a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md
+++ b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.en.md
 ---
 title: Coordonnées sphériques
-published: true
+published: false
 routable: false
 visible: false
 lessons:
-    - slug:
-      order: 
    - slug: spherical-coordinates-linear
      order: 1 
 ---