Roadmap for our approaches to code

[Bjwebb]

What things we're currently trailing - e.g. Docker https://github.com/OpenDataServices/developer-docs/blob/master/tools/docker.md, Agile approaches #11
What's on our wishlist e.g. Email signing

#21 - general approaches to software development may be relevant to this.

[caprenter]

I don't think we are currently trialling very much - or maybe we are. Flagging this for review