Update cheatsheet.fr.md

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

@@ -680,8 +680,11 @@ $`\mathbf{div\,\big(\overrightarrow{U}\land\overrightarrow{V}\big)=
   @@@@@@@@@@@@@
   <br><br>
   $`div\,\big(\overrightarrow{E}\land\overrightarrow{B}\big)
-  =\overrightarrow{B}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{E}}_{\color{blue}{\color{blue}{=-\frac{\partial \vec{B}}{\partial t}}}}\big)\,
-  -\,\overrightarrow{E}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{B}}_{=\mu_0\,\vec{j}+\mu_0\epsilon_0\frac{\partial \vec{E}}{\partial t}
+  =\overrightarrow{B}\cdot
+  \big(
+  \underbrace{\overrightarrow{rot}\,\overrightarrow{E}}
+  _{\color{blue}{=-\frac{\partial \vec{B}}{\partial t}}}\big)\,
+  -\,\overrightarrow{E}\cdot\big(\underbrace{\overrightarrow{rot}\,\overrightarrow{B}}_{\color{blue}{=\mu_0\,\vec{j}+\mu_0\epsilon_0\frac{\partial \vec{E}}{\partial t}
   }}\big)`$   
   <br><br>
   @@@@@@@@@@@@@