Jekyll: Setup

Dealing with Jekyll versions, Ruby Versions, etc.

In the Gemfile of each course repo, there is a line like this:

ruby "2.4.2"

In principle, the version of Ruby you “want” comes from this page:

• https://pages.github.com/versions/

That ruby version should also be set in the setup.sh file on these lines of code:

rvm install ruby-2.4.2
rvm use	2.4.2

And in jekyll.sh in this line of code:

rvm use ruby-2.4.2

And in the .travis.yml file as well:

rvm:
  - 2.5.1