message: Adds docs remark to remove Roster plan. Closes
diff: @@ -27,6 +27,10 @@ m365 planner plan remove [options]
  --8<-- "docs/cmd/_global.md"
  +## Remarks
  +
  +If you wish to delete a Planner plan contained within a Planner Roster, you'll have to remove the roster using [planner roster remove](../roster/roster-remove.md).
  +
  ## Examples
  Removes the Microsoft Planner plan by ID
  