fix contact

contact.html

@@ -8,7 +8,7 @@ title: PyRAT — Contact
 		<h1 class="title">
 		Contact us
 		</h1>
-		<p>If you think PyRAT could be part of any kind of scientific collaboration, including research projects, internships, PhDs, post-doctoral positions and dissemination activities, please contact <a href="zakaria.chihani@cea.fr">zakaria.chihani(at)cea.fr</a> or <a href="augustin.lemesle@cea.fr">augustin.lemesle(at)cea.fr</a>.</p>
+		<p>If you think PyRAT could be part of any kind of scientific collaboration, including research projects, internships, PhDs, post-doctoral positions and dissemination activities, please contact <a href="mailto:zakaria.chihani@cea.fr">zakaria.chihani(at)cea.fr</a> or <a href="mailto:augustin.lemesle@cea.fr">augustin.lemesle(at)cea.fr</a>.</p>
 	</div>
 </section>