Add categories to readme-vars.yml

readme-vars.yml

@@ -6,6 +6,7 @@ project_url: "https://www.blender.org/"
 project_logo: "https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/blender-logo.png"
 project_blurb: "[Blender]({{ project_url }}) is a free and open-source 3D computer graphics software toolset used for creating animated films, visual effects, art, 3D printed models, motion graphics, interactive 3D applications, virtual reality, and computer games. **This image does not support GPU rendering out of the box only accelerated workspace experience**"
 project_lsio_github_repo_url: "https://github.com/linuxserver/docker-{{ project_name }}"
+project_categories: "3D Modeling"
 project_blurb_optional_extras_enabled: false
 # supported architectures
 available_architectures: