Update cheatsheet.es.md

01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/01.maxwell-equations/02.maxwell-equations-overview/cheatsheet.es.md

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 text : "Las 4 ecuaciones de Maxwell"
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-![](Maxwell-equation-es.jpg)
+![](Maxwell-equation-es.jpg)
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+![](general-scheme-electromagnetism-vacuum-2-L1200.jpg)
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