Rekor Spec: Umbrella issue for all TODOs

[tracymiranda]

Description
This is a list of the unresolved TODOs from the original Google Doc to be resolved before archiving that doc. Listed in order of comments in the doc

• Section 2. Clarify what the MAY clause for signing key for an entry (comment)
• Section 2. Clarify paragraph about storage of signing events (comment1, comment2)
• Section 2 Address question about witnessing list (comment)
• Section 3: Make architecture section more descriptive/readable (comment)
• Section 4: Make terminology consistent, consider moving to shared glossary (comment)
• Section 4: Address terminology comments (comment1, comment2, comment3, comment4, comment5)
• Section 5(and others) - ensure definitions are aligned (comment1, comment2)
• Section 5.1 Address comments on record types (comment1, comment2)
• Section 5.2 Consider moving validation metadata (comment)
• Section 5.3 Define signing event (comment)
• Section 5.3 Standardize language for clarity (comment)
• Section 8.3 Address comments to clarify (comment1, comment2)
• Section 8.5 Address comments to clarify section (comment1, comment2 comment3)
• Section 9.3 Ensure terminology is consistent (comment)
• Section 9.5 Address comments (comment1, comment2, comment3)
• Section 10.1 Address comment (comment)
• Section 10.2 Address scope comment (comment)
• Section 10.2.1 Address comment (comment)
• Section 10.3 Address comments (comment1 comment2)
• Section 11 Address comments (comment1, comment2, comment3)
• Section 12 Address comments (comment)
• Section 13 Address comments (comment1,comment2)