Add light tag to examples that could use the light build

examples/vector-features.html

@@ -123,7 +123,7 @@
 <h1 id="title">Drawing Simple Vector Features Example</h1>
 
 <div id="tags">
-    vector, feature
+    vector, feature, light
 </div>
 <p id="shortdesc">
     Shows the use of the shows drawing simple vector features, in different styles.