Node.vala: change doc

gxml/Node.vala

@@ -225,7 +225,7 @@ namespace GXml {
 		 * A link to the parent of this node. For example,
 		 * with elements, the immediate, outer element is the parent.
 		 *
-		 * Example: {{{<parent><child></child></parent>}}}
+		 * XML example: {{{<parent><child></child></parent>}}}
 		 *
 		 * Do not free this.  It's memory will be released
 		 * when the owning {@link GXml.Document} is freed.