Update cheatsheet.en.md

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

@@ -284,7 +284,7 @@ _thus revolutionizing physics._
   $`\left.\begin{array}{l}
   \iint_S \overrightarrow{\text{curl}} \,\overrightarrow{B}\cdot\overrightarrow{dS} = \iint_S\Big(\mu_0\;\overrightarrow{j} + \mu_0 \epsilon_0 \;\dfrac{\partial \overrightarrow{E}}{\partial t}\Big)\cdot\overrightarrow{dS} \\
   \text{Newton: space and time independent},\\
-  \text{order of derivation/integration does not matter}
+  \text{order derivation/integration does not matter}
   \end{array}\right\}`$
   $`\Longrightarrow`$
   $`\iint_S \overrightarrow{\text{curl}} \,\overrightarrow{B}\cdot\overrightarrow{dS}`$ $`\; = \mu_0\iint_S \overrightarrow{j}\cdot\overrightarrow{dS} +