add top margin to footer, so it can breathe better

Author: ialja

static/scss/_base.scss

@@ -225,6 +225,7 @@ footer {
 	background-color: $dark-blue;
 	color: $silver;
 	padding-top: 20px;
+	margin-top: 20px;
 
 	a {
 		color: $white;