Link to trials for various apps in ElfHosted

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

docs/recipes/komga.md

@@ -2,10 +2,13 @@
 title: How to run Komga with Docker
 description: Run Komga under Docker Swarm in docker-compose syntax
 recipe: Komga
+slug: Komga
 ---
 
 # Komga in Docker Swarm
 
+{% include 'try-in-elfhosted.md' %}
+
 So you've just watched a bunch of superhero movies, and you're suddenly inspired to deep-dive into the weird world of comic books? You're already rocking [AutoPirate](/recipes/autopirate/) with [Mylar](/recipes/autopirate/mylar/) and [NZBGet](/recipes/autopirate/nzbget/) to grab content, but how to manage and enjoy your growing collection?
 
 ![Komga Screenshot](../images/komga.png){ loading=lazy }