Tweak list template line height

static/css/styles.css

@@ -436,7 +436,7 @@ caption {
 }
 .patterns-list h2 {
     font-size: 1.25rem;
-    line-height: 1.2;
+    line-height: 1.6;
 }
 .patterns-list li + li {
     margin-top: 1rem;