fix: update icon path for tasks-docker

Author: buenos-nachos

registry/coder-labs/templates/tasks-docker/README.md

@@ -1,7 +1,7 @@
 ---
 display_name: Tasks on Docker
 description: Run Coder Tasks on Docker with an example application
-icon: ./.images/tasks.svg
+icon: ../.images/tasks.svg
 maintainer_github: coder
 verified: false
 tags: [docker, container, ai, tasks]