Add categories to readme-vars.yml

Author: quietsy

readme-vars.yml

@@ -6,6 +6,7 @@ project_url: "https://boinc.berkeley.edu/"
 project_logo: "https://raw.githubusercontent.com/BOINC/boinc/master/doc/logo/boinc_logo_black.jpg"
 project_blurb: "[BOINC]({{ project_url }}) is a platform for high-throughput computing on a large scale (thousands or millions of computers). It can be used for volunteer computing (using consumer devices) or grid computing (using organizational resources). It supports virtualized, parallel, and GPU-based applications."
 project_lsio_github_repo_url: "https://github.com/linuxserver/docker-{{ project_name }}"
+project_categories: "Science"
 project_blurb_optional_extras_enabled: false
 # supported architectures
 available_architectures: