Add alternate instructions in caption

diff --git a/index.html b/index.html
index 10b6c65e6dc0bc13f086de991a8d96d14f46dffa..a8ba10e8e68a58b34f908694e23eb107f6811eb0 100644 (file)
--- a/index.html
+++ b/index.html
@@ -27,7 +27,7 @@
       <p>Open the <b><abbr title="Developer Tools">DevTools</abbr> console</b> to start the demo.</p>
 
       <table>
-        <caption>Keyboard shortcuts to open the DevTools console in various operating systems and web browsers.</caption>
+        <caption>Keyboard shortcuts to open the DevTools console in various operating systems and web browsers. If none of these shortcuts work, press <kbd>F12</kbd> and click the "Console" tab.</caption>
         <thead>
           <tr>
             <th><abbr title="Operating System">OS</abbr></th>