Spaceship with "Minimal Mistake" theme

Hello, I've forked Academic Pages Repo and wanted to use diagrams. I have added your gem in the gemfile and config.yml:

# If you have any plugins, put them here!
group :jekyll_plugins do
  # gem "jekyll-archives"
  gem "jekyll-feed"
  gem "jekyll-sitemap"
  gem "hawkins"
  gem 'jekyll-spaceship'
  # gem "jekyll-mermaid"
end

gemfile

# Plugins
plugins:
  # - jekyll-paginate
  - jekyll-sitemap
  - jekyll-gist
  - jekyll-feed
  - jekyll-redirect-from
  - jekyll-spaceship
# mimic GitHub Pages with --safe
whitelist:
  # - jekyll-paginate
  - jekyll-sitemap
  - jekyll-gist
  - jekyll-feed
  - jemoji
  - jekyll-spaceship

config.yml

But I haven't manage to render the mermaid diagram:

```mermaid!
pie title Pets adopted by volunteers
  "Dogs" : 386
  "Cats" : 85
  "Rats" : 35

Perhaps I'm missing some key elements, I'm quite new to Gh-pages with jekyll.