As a new user, when I was following the readme there were a couple of places I got confused. These are the main issues I ran into.
It was not initially clear that I needed both the dotnet-core-CSharp-lang-extension.zip and had to unzip the folder.
The download for the zip file was previously in the create an external language step. However, the zip file and its contents are referenced before this step is reached (in creating the regex dll step). I think it would beneficial to put the steps to download the zip file before it is used. That way I know which file is being referred to in all steps.
As a new user, when I was following the readme there were a couple of places I got confused. These are the main issues I ran into.