Update README.md

README.md

@@ -8,6 +8,6 @@ This is a reference implementation of the following pattern:
 
 3. The content of the annotation results from custom user interaction governed by business logic.
 
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+This example runs from a bookmarklet. To try it, drag this link -- <a href="javascript:(function(){var d=document; var s=d.createElement('script');s.setAttribute('src','https://jonudell.info/h/HelloWorldAnnotated/gather.js');d.head.appendChild(s)})();">HelloWorldAnnotated</a> -- to your browser's bookmark bar, then visit a web page, make a selection, and click the bookmarklet.