[FIX] Add a link towards projects as corpus test.

templates/home.html

@@ -17,7 +17,7 @@
         <div class="jumbotron">
 						<h1>Gargantext</h1>
 						<p>A web platform to explore text-mining</p>
-						<button type="button" class="btn btn-primary btn-lg" data-container="body">Explore a corpus</button>
+						<a class="btn btn-primary btn-lg" href="/projects">Explore a corpus</a>
         </div>
 
 		<div class="container">