docs: Divide up the list of Dependencies limitations

Author: claremacrae

docs/Getting Started/Task Dependencies.md

@@ -362,9 +362,17 @@ See [[Task Properties#Values for Task Dependencies|Task property values for Task
 
 ## Known Limitations
 
+Visualising dependencies:
+
 - It's not yet possible to directly navigate from a task to the tasks it depends on.
 - Outside of the edit task modal, it is not possible to see the descriptions of the blocking tasks.
 - It is not yet possible to visualise the relationships in any kind of graphical view.
+
+Searching and dependencies:
+
 - The [[Urgency]] score does not account for task dependencies. We are tracking this in [issue #2655](https://github.com/obsidian-tasks-group/obsidian-tasks/issues/2655).
+
+Dependencies and recurring tasks:
+
 - When [[recurring tasks]] are completed, the next recurrence will intentionally have any `id` and `dependsOn` values removed.
   - See [[Recurring Tasks#Next recurrence has any dependency fields removed|Next recurrence has any dependency fields removed]]