docs: add documentation links to changelog

[cbaker6]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Documentation is saved for each version, but not easy to find in the changelog.

Related issue: #n/a

Approach

Add documentation for each version in the changelog.

TODOs before merging

• [x] Update changelog

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[codecov[bot]]

Codecov Report

Base: 90.17% // Head: 90.15% // Decreases project coverage by -0.01% :warning:

Coverage data is based on head (6f13874) compared to base (40a7b42). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #419 +/- ## ========================================== - Coverage 90.17% 90.15% -0.02% ========================================== Files 161 161 Lines 16189 16189 ========================================== - Hits 14598 14595 -3 - Misses 1591 1594 +3 ``` | [Impacted Files](https://codecov.io/gh/parse-community/Parse-Swift/pull/419?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community) | Coverage Δ | | |---|---|---| | [Sources/ParseSwift/Coding/ParseCoding.swift](https://codecov.io/gh/parse-community/Parse-Swift/pull/419/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community#diff-U291cmNlcy9QYXJzZVN3aWZ0L0NvZGluZy9QYXJzZUNvZGluZy5zd2lmdA==) | `90.90% <0.00%> (-2.60%)` | :arrow_down: | | [Sources/ParseSwift/Objects/ParseObject.swift](https://codecov.io/gh/parse-community/Parse-Swift/pull/419/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community#diff-U291cmNlcy9QYXJzZVN3aWZ0L09iamVjdHMvUGFyc2VPYmplY3Quc3dpZnQ=) | `90.10% <0.00%> (-0.23%)` | :arrow_down: | | [Sources/ParseSwift/Objects/ParseObject+async.swift](https://codecov.io/gh/parse-community/Parse-Swift/pull/419/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community#diff-U291cmNlcy9QYXJzZVN3aWZ0L09iamVjdHMvUGFyc2VPYmplY3QrYXN5bmMuc3dpZnQ=) | `96.57% <0.00%> (+0.38%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=parse-community)

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.