Added link to video tutorial

Author: capodieci

readme.md

@@ -38,6 +38,9 @@
 
 ### Development
 
+A video tutorial on how to get started on macOS is here: https://www.youtube.com/watch?v=6lXgiyG5gBM
+[Videos for Windows and Linus are in the making]
+
 - clone the repository.
 - Dep user: run `dep ensure -v --vendor-only` to install the dependencies read from Gopkg.toml only.
 - Go mod user: `go mod download` to generate vendor directory which is should download the packages from `Gopkg.toml` or read from project recursively