Fixed broken code examples formatting in docs.

docs/page.css

@@ -60,7 +60,7 @@ code {
 	width: -moz-calc( 100% - 40px );
 	width: calc( 100% - 40px );
 	padding: 20px;
-	white-space: pre;
+	white-space: pre-line;
 	background-color: #f9f9f9;
 	overflow: auto;
 }