Update cheatsheet.fr.md

12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/cheatsheet.fr.md

@@ -678,13 +678,13 @@ noté **$`\overrightarrow{rot}\,\overrightarrow{X}`$**.
   <br>
   **$`\large\overrightarrow{dS}_P\perp\overrightarrow{rot}\,\overrightarrow{X_P}`$**    
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-  *alors   
+  *alors*   
   <br>
   **$`\large d\mathcal{C}_{\overrightarrow{X}\,,P}\;`$**  $`=\overrightarrow{rot}\,\overrightarrow{X_P}\cdot\overrightarrow{dS}_P`$   
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   $`\hspace{2.3cm} = \lVert  \overrightarrow{rot}\,\overrightarrow{X_P} \rVert \cdot \lVert  \overrightarrow{dS}_P \rVert \cdot \cos\,\dfrac{\pi}{2}`$   
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-  **$`\large \hspace{2.3cm} = 0`$** :
+  **$`\large \hspace{2.3cm} = 0\quad`$** ,
   <br>
   <br>
   la **circulation du champ $`\overrightarrow{X}`$** autour du contour fermé $`d\Gamma_P`$ délimitant