Add GoDoc Usage instructions in the homepage

[tiero]

Describe how a Go developer should import the library (eg. go get) and some highlight on how to generate and address etc.. in the main Readme

[altafan]

Is it enough to add a link in the readme pointing to the example?

[tiero]

still would be missing installing instructions. I think some main functions in the Readme in markdown could be nice.

Thax example.go file would be used by the godoc pkg documentation we'll build