Clean up visual presentation of Aardvark field list

[rmseifried]

Issue

The chart at the top of the Aardvark page has more information than may be necessary (i.e. the (R) (C) (S) and (v) designators).

Suggested solution

Once we complete #24 (determine which fields are needed to meet our community standard for metadata records), consider using just a single designation code to indicate these fields. Also consider removing the other designators - are they necessary at the bird's-eye view, or is it sufficient for them be present in the detailed descriptions below?.

Example:

• Title (R)
• Alternative Title
• Description (R)
• etc.

Key:
(R) = Recommended to meet community standard