Syntax highlighting not working

[GeneThomas]

I did the npm install markdown-to-html -g and then ran github-markdown -h c#-for-scripting.md >c#-for-scripting.html but the resulting .html does not have colour syntax highlighting in it :o(. I am running Ubuntu 16.04.3 LTS. The .md and resulting .html are attaching in a .zip.

markdown and resulting html.zip