Update annex.fr.md

00.brainstorming-pedagogical-teams/45.synthesis-structuring/instructions-for-levels/30.beyond/annex.fr.md

@@ -182,9 +182,10 @@ Sont proposées les catégories suivantes, mais à débattre, toutes les idées
 ! </summary>
 ! <br>
 ! * The optical axis is oriented positively in the direction of light propagation 
-! (from the painting towards the lensball).
+! (from the painting towards the lensball).<br>
 ! <br>
-! * The first spherical refracting surface $`DS1`$ encountered by the light has
+!* The first spherical refracting surface 
+! $`DS1`$ encountered by the light has
 ! the follwing characteristics :<br>
 ! $`\overline{S_1C_1}=+|R|=+5\;cm`$ , $`n_{ini}=1`$ and $`n_{fin}=1.5`$
 ! <br>