Specification for reusables recipes

[vincent-zurczak]

This issue is about commeting and improving the specification available on the wiki and about reusable recipes.

[vincent-zurczak]

@roboconf/developers @roboconf/owners @ykouki @rpignolet I have completed the first draft. Thanks for reading and commenting it.

[rpignolet]

Awesome ! For me it is good and I like the "we need one Git repository by recipe" with a central repo :)

[vincent-zurczak]

After some discussions and comparisons, I indeed changed my mind about the number of repositories, although I do not like the idea of having dozens or hundreds ( 🌋 ) of Git repositories.

[vincent-zurczak]

OK all. Last day to comment the specification.