Bump A-Frame documentation (aframevr/aframe@42a1ad7...9db4268).

Author: SupermediumBot

docs/master/components/vr-mode-ui.html

@@ -1072,8 +1072,14 @@ <h2 id="properties"><a href="#properties" class="headerlink" title="Properties">
 <td>Whether or not to display UI related to entering VR.</td>
 <td>true</td>
 </tr>
+<tr>
+<td>enterVRButton</td>
+<td>Selector to a custom VR button. On click, the button will enter VR.</td>
+<td>‘’</td>
+</tr>
 </tbody>
 </table>
+<h3 id="specifying-a-custom-enter-vr-button"><a href="#specifying-a-custom-enter-vr-button" class="headerlink" title="Specifying a Custom Enter VR Button"></a>Specifying a Custom Enter VR Button</h3><figure class="highlight html"><table><tr><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">a-scene</span> <span class="attr">vr-mode-ui</span>=<span class="string">"enterVRButton: #myEnterVRButton"</span>&gt;</span></span><br><span class="line">  <span class="comment">&lt;!-- Style the button with images or whatever. --&gt;</span></span><br><span class="line">  <span class="tag">&lt;<span class="name">a</span> <span class="attr">id</span>=<span class="string">"myEnterVRButton"</span> <span class="attr">href</span>=<span class="string">"#"</span>&gt;</span><span class="tag">&lt;/<span class="name">a</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">a-scene</span>&gt;</span></span><br></pre></td></tr></table></figure>
 
 
       <!-- Previous / Next navigation. -->
@@ -1126,6 +1132,10 @@ <h2 id="properties"><a href="#properties" class="headerlink" title="Properties">
 
           <ul>
 
+              <li class="subnav-item">
+                <a class="subnav-link" href="#specifying-a-custom-enter-vr-button">Specifying a Custom Enter VR Button</a>
+              </li>
+            
           </ul>
 
       </li>