Create docs for how to document architectural decisions

[mathewtrivett]

Documenting architectural decisions in Agile projects is tricky. There is a balance between actionable documentation over comprehensive documentation.

This generator recommends using Architectural Decisions Records (ADRs) to document technical decisions made on the project.

Acceptance criteria

• [x] It should have a folder to store architectural decisions in the root of the application /docs/adr
• [x] It should have a README.md file describing the decision to use ADRs and provide some guidance on how they work.
• [x] It should have a 0000-adr-template.md file providing a simple template to help get started