Update cheatsheet.fr.md

12.temporary_ins/90.electromagnetism-in-vacuum/10.maxwell-equations/20.overview/cheatsheet.fr.md

@@ -199,7 +199,7 @@ $`\left.\begin{array}{l}
 \end{array}\right\}`$
 $`\Longrightarrow`$
 $`\iint_S \overrightarrow{rot} \,\overrightarrow{B}\cdot\overrightarrow{dS}`$$`\; = \mu_0\iint_S \overrightarrow{j}\cdot\overrightarrow{dS} +
- \mu_0 \epsilon_0\dfrac{d}{dt}\iint_S\overrightarrow{E}\cdot\overrightarrow{dS}`$
+ \mu_0 \epsilon_0\dfrac{d}{dt}\iint_S\overrightarrow{E}\cdot\overrightarrow{dS}`$   
 <br>
    
 $`\left.\begin{array}{l}