Inconsistent use of quotes in trademarks document

"Marks" and "Mark" appear throughout https://github.com/github/MVG/blob/main/org-docs/TRADEMARKS.md in a few different forms both with double, single and no quotes. It appears that the intent is to substitute the actual name of a trademark for "Mark" in some places. This could be made clearer.

Open org-docs/TRADEMARKS.md and review every use of “Mark” and “Marks,” including versions with double quotes, single quotes, and no quotes. Determine a consistent convention that makes the intended substitution clear, then confirm the document uses it throughout.

索引モデルが issue の本文から書いたものです。