change Veldas title in the about.md (#399)

change Veldas title from Events Coordinator to Vice Executor in the english page  and its respecive spanish translation

Author: mbvgua

_articles/es/about.md

@@ -53,7 +53,7 @@ Ejecutor</p>
 <article class="leadership-photo-container">
 <img class="leadership-photo" alt="photo of Velda" src="https://github.com/VeldaKiara.png">
 <p><strong>Velda Kiara</strong><br/>
-Coordinadora de Eventos</p>
+Vice ejecutora</p>
 </article>
 
 <article class="leadership-photo-container">

about.md

@@ -57,7 +57,7 @@ Executor</p>
 <article class="leadership-photo-container">
 <img class="leadership-photo" alt="photo of Velda" src="https://github.com/VeldaKiara.png">
 <p><strong>Velda Kiara</strong><br/>
-Events Coordinator</p>
+Vice Executor</p>
 </article>
 <article class="leadership-photo-container">
 <img class="leadership-photo" alt="photo of Oleksis" src="https://github.com/oleksis.png">