Update Linked Agent to Contributors.

[rosiel]

Purpose / why

#2256

What changes were made?

Rename Linked Agent to Contributors, with reference made to its machine name field_linked_agent where relevant.

Verification

Are there other places this is needed?

Interested Parties

• @Islandora/documentation
• @Islandora/committers

Checklist

Pull-request Reviewer

Pull-request reviewer should ensure the following:

• Does this PR link to related issues?
• Does the proposed documentation align with the Islandora Documentation Style Guide?
• Are the changes accurate, useful, free of typos, etc?

Person Merging

The person merging should ensure the following:

• Does mkdocs still build successfully? (This is indicated by TravisCI passing. To test locally, and see warnings, see How To Build Documentation.)
• If pages are renamed or removed, have all internal links to those pages been fixed?
• If pages are added, have they been linked to or placed in the menu?
• Did the PR receive at least one approval from a committer, and all issues raised have been addressed?

[github-actions]

PR Preview Action v1.4.4
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2023-09-13 17:07 UTC

[aOelschlager]

Looks good to me. Thanks Rosie!