Super. A book offers structure to get going. 'By example' is great too. As is 'read the manual'. [Good to have all, I like books.] Getting a structure fill

Super. A book offers structure to get going. 'By example' is great too. As is 'read the manual'. [Good to have all, I like books.] Getting a structure filled out takes a fair bit of effort. That hurdle's overcome. On Github, its easy to fork / contribute - the tools are right there along with a creative commons (or, Apache in this case) license. Structure, content, license and tools are all there.