add category

Author: thelamer

readme-vars.yml

@@ -7,6 +7,7 @@ project_logo: "https://raw.githubusercontent.com/linuxserver/docker-templates/ma
 project_blurb: "[Flycast]({{ project_url }}) is a multi-platform Sega Dreamcast, Naomi, Naomi 2, and Atomiswave emulator derived from reicast."
 project_lsio_github_repo_url: "https://github.com/linuxserver/docker-{{ project_name }}"
 project_blurb_optional_extras_enabled: false
+project_categories: "Games"
 # supported architectures
 available_architectures:
   - {arch: "{{ arch_x86_64 }}", tag: "amd64-latest"}