This is the GitHub repository for the Julia programming language project's main website, julialang.org. The repository for the source code of the language itself can be found at github.com/JuliaLang/julia.
The Julia website is generated using GitHub pages and Jekyll, as explained here.
In short, be sure you have ruby installed, and then run these commands
gem install bundler
to install bundler, run
bundle install
from the root of this repository to fetch all dependencies. You only have to do this once.
Now you can run
bundle exec jekyll serve
in the root of this repository to serve it, usually on http://localhost:4000.
You can then edit the sources and Jekyll will rebuild changed files. To see changes, reload the page you edited.