Install Julia and nteract
Note that the notebooks in this course were created using Julia 1.0 so the default Runtime might be Julia 1.0 when you open the notebook.
After you open the notebook in nteract from any given section, just click "Runtime" -> "Julia 1.4.1" to switch your runtime from Julia 1.0 to 1.4.1.
You can find all of the notebooks here: https://github.com/JuliaAcademy/JuliaTutorials/tree/master/introductory-tutorials/intro-to-julia or download them individually in each section.
Have further questions? Please post them on Discourse (https://discourse.julialang.org) where the whole Julia community can chime in as the response time on comments may be slow.