Update...

Update 12.temporary_ins/20.magnetostatics-vacuum/10.effects-stationary-magnetic-field/20.overview/cheatsheet.fr.md

12.temporary_ins/20.magnetostatics-vacuum/10.effects-stationary-magnetic-field/20.overview/cheatsheet.fr.md

@@ -8,6 +8,10 @@ lessons:
        slug: biot-savard-magnetostatics
        name: "LINÉAIRE-3 : Magnétostatique de Biot et Savard"
        order: 3
+      - 
+       slug: biot-savard-magnetostatics-cylindrical-coordinates
+       name: "OUTIL_MATH-3 : Coordonnées cylindriques et Biot et Savard"
+       order: 3
 ---
 
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