There are many Markdown tools. This one is ours, for searching things.
You will need to have both Go (specifically a version of Go more recent than 1.7 so let's just assume you need Go 1.9 or higher) and the make programs installed on your computer. Assuming you do just type:
make bin
All of this package's dependencies are bundled with the code in the vendor directory.
Everything is in flux, right now. Lots of things will change.