[Docs] Add new objective to quest page

Author: Marten-Mrfc

documentation/docs/docs/03-creating-stories/05-questing/index.mdx

@@ -236,9 +236,9 @@ In this editor you can increase and decrease the permanent fact used in the imag
 ## Adding objectives
 You now have created a quest entry, but it doesn't have any objectives yet. For this documentation we have created multiple guides on how to do different objectives.
 - **Talk to NPC**: [**Talk Objective**](./01-talk-objective.mdx)
-- **Kill 10 Zombies**: Being written
+- **Kill 10 Zombies**: [**Kill Objective**](./02-kill-zombie-objective.mdx)
 - **Gather 10 Emeralds**: Soon
 - **Give to Npc (Mail delivery)**: Soon
 
 ## Displaying the Quest
-It is also possible to display the quest to players via placeholders. Read: **SOON** to learn more about this.
+It is also possible to display the quest to players via placeholders. Read: **BEING WRITTEN** to learn more about this.