final pass of spec for coherence and completeness

[balmas]

We need to do a final pass of the spec to make sure it is coherent and complete. Maggie agreed to do this when we have a near final draft at the end of August.

[TobiasWeigel]

add acronym section at the end?

[TobiasWeigel]

Remember, before closing this issue: put final document out for comments over the collections list prior to P10.