Installation issue

Created by: roelvangils

I'm hoping and willing to contribute to this great project soon, but I'm running into to some trouble getting the project to run locally.

I followed the instructions in README.me, updated my Ruby installation and installed all the necessary gems. However, when trying to run jekyll serve, I am greeted with this message:

/usr/local/Cellar/ruby/2.4.1_1/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- bundler (LoadError)
	from /usr/local/Cellar/ruby/2.4.1_1/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/local/lib/ruby/gems/2.4.0/gems/jekyll-3.5.2/lib/jekyll/plugin_manager.rb:46:in `require_from_bundler'
	from /usr/local/lib/ruby/gems/2.4.0/gems/jekyll-3.5.2/exe/jekyll:9:in `<top (required)>'
	from /usr/local/bin/jekyll:22:in `load'
	from /usr/local/bin/jekyll:22:in `<main>'

I'm experienced using front-end technology, but haven't used Jekyll before. So perhaps someone can point me in the right direction to get the project running.