docs: make "current release" a link to the release notes
Merge pull request #6650 from terminalmage/docs

docs: make "current release" a link to the release notes
Remove release note about osfinger (it was reverted in final release)
Merge pull request #6651 from basepi/16.3.releasefix

Remove release note about osfinger (it was reverted in final release)
Link to 0.16.0 release notes from 0.16.2/0.16.3

The release notes for these two versions make mention of 0.16.0, so this
commit makes those into links for easier navigation.
Merge pull request #6652 from terminalmage/release_notes

Link to 0.16.0 release notes from 0.16.2/0.16.3
Merge pull request #6654 from SmithSamuelM/unify-api

Unify api
Merge pull request #6657 from SmithSamuelM/signature

Signature