Add the layer.zoomTo() WebIDL method

spec/index.html

@@ -364,6 +364,7 @@ <h3>Changes</h3>
               <li><time>2021-09-08</time>: Remove undefined and unresolved <code>LinkStyle</code> interface reference, per <a href="https://github.com/Maps4HTML/MapML/issues/212">#212</a></li>
               <li><time>2021-09-08</time>: Remove <code>legendLinks</code> attribute and interface definition and reference, per <a href="https://github.com/Maps4HTML/MapML/issues/212">#212</a></li>
               <li><time>2023-02-24</time>: Remove <code>datalist</code> element and associated input <code>shard</code> and <code>list</code> attributes.
+              <li><time>2023-03-13</time>: Add <code>layer.zoomTo()</code> method.
             </ol>
           </details>
         </section>
@@ -764,6 +765,7 @@ <h4>The <code>&lt;<dfn id="the-layer-element">layer</dfn>&gt;</code> element</h4
                      attribute boolean <a href="#attr-layer-hidden">hidden</a>;
                      attribute DOMString <a href="#attr-layer-referrerpolicy">referrerPolicy</a>;
                      attribute DOMString? <a href="#attr-layer-crossorigin">crossOrigin</a>;
+                               undefined zoomTo();
           };
           </pre>
         </dd>
@@ -782,6 +784,7 @@ <h4>The <code>&lt;<dfn id="the-layer-element">layer</dfn>&gt;</code> element</h4
         remove the <a href="#the-layer-element"><code>layer</code></a> from the map display, it can have its <a href="#attr-layer-checked"><code>checked</code></a> property toggled, or be removed from the DOM.</p>
         <p>The <a href="#attr-layer-disabled"><code>disabled</code></a> property is a read-only boolean indicator of the visibility of the layer on the map.  If the layer is not visible due to errors, including projection,
         zoom or extent mismatch, the property will be true and if the layer is present in the layer control (i.e. <a href="#attr-layer-hidden"><code>hidden</code></a> is false), it will be disabled in that control i.e. not checkable.</p>
+        <p>The location and zoom level of the map can be changed via the <a href="#dom-htmllayerelement-zoomto"><code>layer</code>.<code>zoomTo()</code></a> API method.</p>
 
         </section>
         <section>