[fidldoc] Update reference docs for main
diff --git a/main/sdk/fidl/fuchsia.hardware.power/README.md b/main/sdk/fidl/fuchsia.hardware.power/README.md
index c5eff81..d052dde 100644
--- a/main/sdk/fidl/fuchsia.hardware.power/README.md
+++ b/main/sdk/fidl/fuchsia.hardware.power/README.md
@@ -487,6 +487,45 @@
 
 ## **TABLES**
 
+### Domain  {#Domain data-text="Domain"}
+
+
+*Defined in [fuchsia.hardware.power/metadata.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.hardware.power/metadata.fidl;l=8)*
+<p>Information related to a power domain.</p>
+
+<table>
+    <tr><th>Ordinal</th><th>Field</th><th>Type</th><th>Description</th></tr>
+        <tr id="Domain.id">
+<td><h3 id="Domain.id" class="add-link hide-from-toc">1</h3></td>
+            <td><code>id</code></td>
+            <td>
+                <code>uint32</code>
+            </td>
+            <td><p>Domain ID should be unique across all power domains in the same level.
+Used to associate power consumers that belong to the same power domain.</p>
+</td>
+        </tr>
+</table>
+
+### DomainMetadata  {#DomainMetadata data-text="DomainMetadata"}
+
+
+*Defined in [fuchsia.hardware.power/metadata.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.hardware.power/metadata.fidl;l=15)*
+<p>Passed to the power core driver in metadata as DEVICE_METADATA_POWER_DOMAINS.</p>
+
+<table>
+    <tr><th>Ordinal</th><th>Field</th><th>Type</th><th>Description</th></tr>
+        <tr id="DomainMetadata.domains">
+<td><h3 id="DomainMetadata.domains" class="add-link hide-from-toc">1</h3></td>
+            <td><code>domains</code></td>
+            <td>
+                <code>vector&lt;<a class='link' href='#Domain'>Domain</a>&gt;</code>
+            </td>
+            <td><p>List of power domains to be managed by this power driver.</p>
+</td>
+        </tr>
+</table>
+
 ### LevelTuple  {#LevelTuple data-text="LevelTuple"}