Add some code documentation
MODIFY
repo2docker/buildpacks/julia/julia_project.py
repo2docker/buildpacks/julia/julia_project.py
@@ -113,6 +113,10 @@ class JuliaProjectTomlBuildPack(PythonBuildPack):
"""
Return series of build-steps specific to "this" Julia repository
+ We make sure that the IJulia package gets installed into the default
+ environment, and not the project specific one, by running the
+ IJulia install command with JULIA_PROJECT="".
+
Instantiate and then precompile all packages in the repos julia
environment.

Add some code documentation