Update cheatshhet.fr.md

12.temporary_ins/08.conservative-vector-fields/20.conservative-vector-fields-properties/20.overview/cheatshhet.fr.md

@@ -114,10 +114,12 @@ CHAMP VECTORIEL CONSERVATIF<br>_" du champ vectoriel (conservatif) aux champs sc
   
   La circulation d'un champ vectoriel conservatif le long d'un chemin $`\Gamma`$
   
-  $`\mathbf{\displaystyle\int_{M_1}^{M_2}\overrightarrow{X}\cdot\overrightarrow{dl}}=\int_{M_1}^{M_2} \overrightarrow{grad}(\phi)\cdot\overrightarrow{dl}`$
-  $`\quad\quad = \displaystyle\int_{M_1}^{M_2} d\phi\mathbf{\;=\phi(M_2)-\phi(M_1)}`$
-  
+  $`\displaystyle\mathbf{\int_{M_1}^{M_2}\overrightarrow{X}\cdot\overrightarrow{dl}}=\int_{M_1}^{M_2} \overrightarrow{grad}(\phi)\cdot\overrightarrow{dl}`$
+  $`\quad\quad\quad\quad = \displaystyle\int_{M_1}^{M_2} d\phi\mathbf{\;=\phi(M_2)-\phi(M_1)}`$
   
+  $`\displaystyle\begin{align}\mathbf{\int_{M_1}^{M_2}\overrightarrow{X}\cdot\overrightarrow{dl}}&=\int_{M_1}^{M_2} \overrightarrow{grad}(\phi)\cdot\overrightarrow{dl}\\
+    & = \displaystyle\int_{M_1}^{M_2} d\phi\mathbf{\;=\phi(M_2)-\phi(M_1)}
+    \end{align}`$