suggestions for accessibility standards

[helpfultangent]

We suggest adding subsections in the Accessibility:
Repositories
include recommendations such as suggested schema (minimal)

• address how a model is configured for general execution versus specific setups for a case study

Executables
include recommendations for sharing code bases, executables, encapsulation, packaging approaches, and versioning.

Consider ideas about how to handle the need to embargo in some instances

*Consider adding a section about license issues or tiers of levels for sharing