Update the Limitations in Migration.md

Author: Hemalatha-SF4675

MAUI/Rich-Text-Editor/Migration.md

@@ -167,4 +167,11 @@ To migrate easily from [`Xamarin SfRichTextEditor`](https://help.syncfusion.com/
         <td>ToggleSuperscript()</td>
         <td>Toggles the selected text as super script format.</td>
     </tr>
-</table>
+</table>
+
+## Limitations
+
+* `Nested ScrollView:` RichTextEditor scroll behavior is incompatible with parent ScrollView containers and will be automatically disabled.
+* `AutoSize Configuration:` To prevent off-screen rendering when AutoSize is enabled, configure the MaximumHeightRequest property to constrain the control within viewport boundaries.
+* `Keyboard Interaction:` Toolbar visibility is affected when MaximumHeightRequest extends into the on-screen keyboard area, causing automatic hiding.
+* `Supported Content Types:` Editor content is restricted to plain text and HTML markup formats only.