Update cheatsheet.fr.md

12.temporary_ins/10.electrostatics-vacuum/20.causes-stationary-electric-field/20.overview/cheatsheet.fr.md

@@ -604,7 +604,7 @@ $`\hspace{2.3cm}=\quad\dfrac{\dens^{1D}\cdot R\,d\varphi}{4\pi\epsilon_0}\cdot\d
 ! $`\color{blue}{\scriptsize{\text{soit encore }}}`$   
 ! $`\color{blue}{\scriptsize{\text{  - la primitive de } (n+1)\cdot u^n \cdot u' \text{ est } u^{n+1}}}`$   
 !
-! $`\displaystyle\hspace{1cm}=\dfrac{\dens^{2D}\,z}{2\epsilon_0}  
+! $`\displaystyle\hspace{0.5 cm}=\dfrac{\dens^{2D}\,z}{2\epsilon_0}  
 ! \int_{\rho = 0}^R - \Big(\underbrace{-\dfrac{1}{2}}_{\color{blue}{n+1}}\Big)\cdot\underbrace{2\rho}_{\color{blue}{u^{\,'}}}\,\underbrace{(\rho^2+z^2)^{-\,3/2}}_{\color{blue}{u^n}}\,d\rho`$<br>
 ! <br>
 ! $`\displaystyle \hspace{0.5 cm} =  - \dfrac{\dens^{2D}\,z}{2\epsilon_0} \big[\underbrace{(\rho^2+z^2)^{-\,1/2}}_{\color{blue}{u^{n+1}}}\big]_0^R`$<br>