Update textbook.fr.md

5 years ago · 0ef0bbdd58
1 changed files with 2 additions and 0 deletions
--- a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.fr.md
+++ b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/10.main/textbook.fr.md
@ -4,6 +4,8 @@ published: true
 routable: false
 visible: false
 lessons:
+    - slug: 
+      order:  
    - slug: spherical-coordinates-linear
      order: 1 
 ---