_includes/components/card_formation.njk: Fix email link

Author: bzg

_includes/components/card_formation.njk

@@ -9,7 +9,7 @@
       </h3>
       <p class="fr-card__desc">{{ card.description }}</p>
       <div class="fr-card__start">
-	<p><a href="{{ card.email }}">Contact</a></p>
+	<p><a href="mailto:{{ card.email }}">Contact</a></p>
       </div>
       <div class="fr-card__end">
 	<h6>Formations</h6>