docs: small fixes

Author: YousefED

docs/pages/docs/editor-basics/setup.mdx

@@ -100,9 +100,9 @@ export type BlockNoteViewProps = {
 
 `editable`: Whether the editor should be editable.
 
-`onSelectionChange`: Callback for when the editor selection changes.
+`onSelectionChange`: Callback fired when the editor selection changes.
 
-`onChange`: Callback for when the editor selection or content changes.
+`onChange`: Callback fired when the editor content (document) changes.
 
 `theme`: The editor's theme, see [Themes](/docs/styling-theming/themes) for more about this.