diff --git a/expert.html b/expert.html
index 4811964..a6b9e8b 100644
--- a/expert.html
+++ b/expert.html
@@ -33,7 +33,7 @@ function handleOnload() {
 <span id="plain">
 <a href="http://www.visual6502.org/faq.html">FAQ</a>&nbsp;
 <a href="http://blog.visual6502.org">Blog</a>&nbsp;
-<a href="http://www.visual6502.org/links.html">Links</a>&nbsp
+<a href="http://www.visual6502.org/links.html">Links</a>&nbsp;
 </span>
 <div class="frame" id="frame">
 <div class="leftcolumn">
@@ -52,6 +52,7 @@ function handleOnload() {
   </form>
 </div>
 <div id="layoutControlPanel">
+  Use '>' to zoom in, '<' to zoom out, click to probe signals and drag to pan.
   <form id="updateShow"> Show:
   <input type="checkbox" name="1" id="updateShow1" onchange="updateShow(this.name,this.checked)" />(diffusion)
   <input type="checkbox" name="3" id="updateShow3" onchange="updateShow(this.name,this.checked)" />(grounded diffusion)