Documentation: PostPublishButton, PostPublishButtonLabel editor compo…

…nents (#62379)

* Add JSDoc block for PostPublishButton editor component

* Auto-generate editor docs for PostPublishButton component

* Add JSDoc block for PublishButtonLabel editor component

* Auto-generate editor docs for PostPublishButtonLabel

packages/editor/README.md

@@ -1193,11 +1193,15 @@ _Returns_
 
 ### PostPublishButton
 
-Undocumented declaration.
+Renders the publish button.
 
 ### PostPublishButtonLabel
 
-Undocumented declaration.
+Renders the label for the publish button.
+
+_Returns_
+
+-   `string`: The label for the publish button.
 
 ### PostPublishPanel
 

packages/editor/src/components/post-publish-button/index.js

@@ -205,6 +205,9 @@ export class PostPublishButton extends Component {
 	}
 }
 
+/**
+ * Renders the publish button.
+ */
 export default compose( [
 	withSelect( ( select ) => {
 		const {

packages/editor/src/components/post-publish-button/label.js

@@ -10,6 +10,11 @@ import { useViewportMatch } from '@wordpress/compose';
  */
 import { store as editorStore } from '../../store';
 
+/**
+ * Renders the label for the publish button.
+ *
+ * @return {string} The label for the publish button.
+ */
 export default function PublishButtonLabel() {
 	const isSmallerThanMediumViewport = useViewportMatch( 'medium', '<' );
 	const {