update changelog and reference

CHANGELOG.md

@@ -72,6 +72,7 @@ Leaflet Changelog
 * Clean up and document event propagation properties ([#5880](https://github.com/Leaflet/Leaflet/issues/5880) by [perliedman](https://github.com/perliedman))
 * Update building instructions ([#5911](https://github.com/Leaflet/Leaflet/issues/5911) by [shadeland](https://github.com/shadeland))
 * Document `mouseup` event for interactive `L.Layer` ([#5941](https://github.com/Leaflet/Leaflet/issues/5941) by [germansokolov13](https://github.com/germansokolov13))
+* Document `L.Icon`'s `tooltipAnchor` option, update `tooltipAnchor` and `popupAnchor` default values docs ([#5989](https://github.com/Leaflet/Leaflet/issues/5989) by [cherniavskii](https://github.com/cherniavskii))
 
 ### ES6 / Rollup
 

docs/reference-1.3.0.html

@@ -17360,9 +17360,15 @@ by default if size is specified, also can be set in CSS with negative margins.</
 	<tr id='icon-popupanchor'>
 		<td><code><b>popupAnchor</b></code></td>
 		<td><code><a href='#point'>Point</a></code>
-		<td><code>null</code></td>
+		<td><code>[0, 0]</code></td>
 		<td>The coordinates of the point from which popups will &quot;open&quot;, relative to the icon anchor.</td>
 	</tr>
+	<tr id='icon-tooltipanchor'>
+		<td><code><b>tooltipAnchor</b></code></td>
+		<td><code><a href='#point'>Point</a></code>
+		<td><code>[0, 0]</code></td>
+		<td>The coordinates of the point from which tooltips will &quot;open&quot;, relative to the icon anchor.</td>
+	</tr>
 	<tr id='icon-shadowurl'>
 		<td><code><b>shadowUrl</b></code></td>
 		<td><code>String</code>
@@ -17595,9 +17601,15 @@ by default if size is specified, also can be set in CSS with negative margins.</
 	<tr id='divicon-popupanchor'>
 		<td><code><b>popupAnchor</b></code></td>
 		<td><code><a href='#point'>Point</a></code>
-		<td><code>null</code></td>
+		<td><code>[0, 0]</code></td>
 		<td>The coordinates of the point from which popups will &quot;open&quot;, relative to the icon anchor.</td>
 	</tr>
+	<tr id='divicon-tooltipanchor'>
+		<td><code><b>tooltipAnchor</b></code></td>
+		<td><code><a href='#point'>Point</a></code>
+		<td><code>[0, 0]</code></td>
+		<td>The coordinates of the point from which tooltips will &quot;open&quot;, relative to the icon anchor.</td>
+	</tr>
 	<tr id='divicon-shadowurl'>
 		<td><code><b>shadowUrl</b></code></td>
 		<td><code>String</code>