fix: correct formatting of Task Sync section header for consistency

Author: hannesrudolph

docs/update-notes/v3.28.0.mdx

@@ -21,7 +21,7 @@ Introducing our new cloud connectivity features that let you **monitor and contr
 
 <img src="/img/v3.28.0/v3.28.0.png" alt="Roomote Control interface showing real-time task monitoring and control from browser" width="300" />
 
-**Task Sync](/roo-code-cloud/task-sync) (FREE for All Users)**:
+**[Task Sync](/roo-code-cloud/task-sync) (FREE for All Users)**:
 - **Monitor from Anywhere**: Check on long-running tasks from your phone while away from your desk
 - **Real-time Updates**: Live streaming of your local task messages and progress
 - **Task History**: Your tasks are saved to the cloud for later reference