feat(layouts/shortcodes/mermaid.html-layouts/_default/baseof.html): A… (#595)
* feat(layouts/shortcodes/mermaid.html-layouts/_default/baseof.html): Add mermaid js support for theme
* docs(CONTRIBUTORS.md): Add jneo8 to CONTRIBUTORS.md
* feat(exampleSite,layouts): Add mermaid js example content and update mermaid js settings in layout
* Update CONTRIBUTORS.md
Co-authored-by: Luiz F. A. de Prá <luizdepra@users.noreply.github.com>