diff --git a/site/index.html b/site/index.html
index f86f143..9395e68 100644
--- a/site/index.html
+++ b/site/index.html
@@ -56,7 +56,7 @@
                 <p>
                     You know that Vim lets you undo changes like any text editor. What you might
                     not know is that it doesn't just keep a list of your changes &mdash; it keeps
-                    a goddamed <a href="http://vim.wikia.com/wiki/Using_undo_branches">tree</a> of them.
+                    a <a href="http://vim.wikia.com/wiki/Using_undo_branches">tree</a> of them.
                 </p>
 
                 <p>
@@ -100,6 +100,7 @@
                             <li><a href="#gundo_close_on_revert">g:gundo_close_on_revert</a></li>
                             <li><a href="#gundo_statusline">g:gundo_[preview/tree]_statusline</a></li>
                             <li><a href="#gundo_auto_preview">g:gundo_auto_preview</a></li>
+                            <li><a href="#gundo_playback_delay">g:gundo_playback_delay</a></li>
                         </ul>
                     </li>
                     <li><a href="#license">License</a></li>
@@ -347,6 +348,17 @@ let g:gundo_right = 1
                 <p>Set this to 1 to rendering diff automatically with cursor move.</p>
 
                 <p>Default: 1 (auto preview diff)</p>
+
+                <a name="#gundo_playback_delay"></a>
+                <h2>g:gundo_playback_delay</h2>
+
+                <p>
+                    This is the delay in milliseconds between each change when running 'play to'
+                    mode. Set this to a higher number for a slower playback or to a lower number
+                    for a faster playback.
+                </p>
+
+                <p>Default: 60</p>
             </section>
             <section>
                 <a name="license"></a>
@@ -388,6 +400,16 @@ let g:gundo_right = 1
                 <h1>Changelog</h1>
 
                 <ol class="changelog">
+                    <li>v2.5.0
+                        <ul>
+                            <li>
+                                Fix the help window to take custom mappings into account.
+                            </li>
+                            <li>
+                                Add <code>g:gundo_playback_delay</code> option.
+                            </li>
+                        </ul>
+                    </li>
                     <li>v2.4.0
                         <ul>
                             <li>