Update cheatsheet.fr.md

12.temporary_ins/80.energie-transformations-applications-impacts/20.n2/50.energy-mix/40.TD-hydroelectricity/50.parallel-1/cheatsheet.fr.md

@@ -241,11 +241,13 @@ $`\hspace{1,6cm}=\dfrac{0,8\times 375\times 10^{9}}{18\times 10^6}`$
 
 <details markdown=1><summary>Solution</summary>
   
-**$`\mathbf{V_{digue}}`$** $`\;= (2\times 300\times 150)+\dfrac{48\times 300\times 150}{2}\,m^3`$
+* **$`\mathbf{V_{digue}}`$** 
 
-$`\hspace{1,6cm}=(90\,000+1\,080\,000)\,m^3`$
+$`\hspace{1,0cm}= (2\times 300\times 150)+\dfrac{48\times 300\times 150}{2}\,m^3`$
 
-**$`\hspace{1,6cm}\mathbf{\simeq 1,2\cdot10^6\,m^3}`$**
+$`\hspace{1,0cm}=(90\,000+1\,080\,000)\,m^3`$
+
+**$`\hspace{1,0cm}\mathbf{\simeq 1,2\cdot10^6\,m^3}`$**
 
 </details>