Getting plugin tutorial working

Hi, I’m working through this article:

to learn basics of plugin development.
I’m on a Mac machine running Catalina, docker desktop installed and used on other projects.
I started a new terminal window (sitting at my home directory). Followed the first steps in the article, but when I type “pongo run”, I get the following error after creating the container:

Creating pongo-452ebcf4_kong_run ... done

Kong version: 2.8.1

0 successes / 0 failures / 2 errors / 0 pending : **0.000025** seconds

Error → Cannot find file or directory: /kong-plugin/spec

Error → No test files found matching Lua pattern: _spec

ERROR: 1

Ok, I have no directory called /kong-plugin/spec so that error makes sense, but what am I supposed to do to rectify this??

Thanks

i’m not affiliated with Kong, i’m a user learning how to use the environment.
Assuming you are familiar with the terminal interface in mac.
I created a folder for the code, the following the tutorial, you clone the repo, and should be able to run pongo from there:

mkdir $HOME/code
cd $HOME/code
git clone https://github.com/Kong/kong-plugin.git kong-api-version-plugin
cd kong-api-version-plugin
pongo-run

the previous assumes you already have pongo-run installed in your machine