diff --git a/docs/index.html b/docs/index.html
index 7f321e3..9681415 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -835,24 +835,76 @@ <h4 style="padding-top:40px"><a id="end-of-phrase" href="#end-of-phrase"></a>End
                     <div>
                         <pre class="notranslate"><code>- StartBeat</code></pre>
                     </div>
-                    <h4 style="padding-top:40px"><a id="p1" href="#p1"></a>P1</h4>
-                    <p><code>P1</code> marks all the notes for Player 1 in duets.
-                    </p>
-                    <div>
-                        <pre class="notranslate"><code>P1</code></pre>
-                    </div>
-                    <h4 style="padding-top:40px"><a id="p2" href="p2"></a>P2</h4>
-                    <p><code>P1</code> marks all the notes for Player 2 in duets.
-                    </p>
-                    <div>
-                        <pre class="notranslate"><code>P2</code></pre>
-                    </div>
                     <h4 style="padding-top:40px"><a id="end-of-file" href="#end-of-file"></a>End of file</h4>
                     <p><code>E</code> represents the end of a file.
                     </p>
                     <div>
                         <pre class="notranslate"><code>E</code></pre>
                     </div>
+                    <h4 style="padding-top:40px"><a id="player-delimiter" href="#player-delimiter"></a>Player delimiter</h4>
+                    <p><code>P1</code> or <code>P2</code> player delimiter. The following section of notes are for player 1 or player 2.</p>
+                    <div>
+                        <pre class="notranslate"><code>P1</code></pre>
+                    </div>
+                    <details>
+                        <summary>App Support</summary>
+                        <div class="table-responsive">
+                            <table class="table">
+                                <thead>
+                                    <tr>
+                                        <th>App</th>
+                                        <th>Version</th>
+                                        <th>Supported</th>
+                                        <th>Comment</th>
+                                    </tr>
+                                </thead>
+                                <tbody>
+                                    <tr>
+                                        <td>UltraStar deluxe </td>
+                                        <td>&gt; 2020.4.0 (2020-04-30)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>UltraStar World Party</td>
+                                        <td>21.02 (2021-02-07)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>Vocaluxe</td>
+                                        <td>0.41 (2020-03-10)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>Performous</td>
+                                        <td>1.2.0 (2022-03-27)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>UltraStar Play</td>
+                                        <td>0.9.0 (2023-02-01)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>Yass</td>
+                                        <td>2.4.3 (2023-03-18)</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                    <tr>
+                                        <td>Karedi</td>
+                                        <td>>=1.1.0</td>
+                                        <td>✔️</td>
+                                        <td></td>
+                                    </tr>
+                                </tbody>
+                            </table>
+                        </div>
+                    </details>
                     <h4 style="padding-top:40px"><a id="notetypes" href="#notetypes"></a>NoteTypes</h4>
                     <h5><a id="normal-" href="#normal-"></a>Normal <code>:</code></h5>
                     <p>The normal note.</p>
@@ -1474,7 +1526,7 @@ <h4><a id="videogap" href="#videogap"></a>VIDEOGAP</h4>
                         value for VIDEOGAP, you can delay or advance the start of the video relative to the start of the
                         song.</p>
                     <div>
-                        <pre class="notranslate"><code>#VIDEOGAP:-1.5
+                        <pre class="notranslate"><code>#VIDEOGAP:12345
                     </code></pre>
                         <div>