Fix typo, default position of right hand legend is top-right.

lib/timeline/component/Legend.js

@@ -18,7 +18,7 @@ function Legend(body, options, side, linegraphOptions) {
     },
     right: {
       visible: true,
-      position: 'top-left' // top/bottom - left,center,right
+      position: 'top-right' // top/bottom - left,center,right
     }
   }