- jekyll serve --livereload --source app/ --destination app/_site/
- Jekyll version 3.5.2 (gem)
- Bootstrap 4.0.0-beta (npm)
- Gulp 3.9.1
- Ruby 2.4.0
- gem list
- gem update (updates all gems)
- gem update jekyll (update just jekyll)
- gem cleanup jekyll (deletes old versions of jekyll)