Add Rubyist

Author: aridlehoover

_data/software.yml

@@ -14,6 +14,14 @@
   source: https://github.com/first-try-software/liberty
   source_name: GitHub
 
+- name: Rubyist
+  slug: rubyist
+  type: VS Code Theme
+  download: https://https://marketplace.visualstudio.com/items?itemName=first-try-software.rubyist
+  download_name: VS Code Marketplace
+  source: https://github.com/first-try-software/rubyist
+  source_name: GitHub
+
 - name: Ruby Flog
   slug: ruby-flog
   type: VS Code Extension