Update cheatsheet.fr.md

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

@@ -483,9 +483,9 @@ en tout point $`P`$ de l'anneau, telle que :
 **$`\mathbf{\overrightarrow{dE}_{P\rightarrow M}}`$** 
 $`\quad=\quad\dfrac{\dens^{1D}\cdot dl_P}{4\pi\epsilon_0}\cdot\dfrac{\overrightarrow{PM}}{||\,\overrightarrow{PM}\,||^{\,3}}`$   
 <br>
-$`\hspace{2.3cm}=\quad\dfrac{\dens^{1D}\cdot R\,d\varphi}{4\pi\epsilon_0}\cdot\dfrac{\overrightarrow{PM}}{d^3}`$   
+$`\hspace{1.7cm}=\quad\dfrac{\dens^{1D}\cdot R\,d\varphi}{4\pi\epsilon_0}\cdot\dfrac{\overrightarrow{PM}}{d^3}`$   
 <br>
-**$`\hspace{2.3cm}\boldsymbol{\mathbf{=\quad\dfrac{\dens^{1D}\,R }{4\pi\epsilon_0}\cdot\dfrac{-R\,\overrightarrow{e_{\rho}}+z_m\,
+**$`\hspace{1.7cm}\boldsymbol{\mathbf{=\quad\dfrac{\dens^{1D}\,R }{4\pi\epsilon_0}\cdot\dfrac{-R\,\overrightarrow{e_{\rho}}+z_m\,
 \overrightarrow{e_z}}{(R^2+z_M^2)^{\,3/2}}\;d\varphi}}`$**   
 <br>