PHP 8 (#112)

NewResourceObject to allow omitting id in resources to-be-created (#108)

Allow RelatedLink in Document. Fixes #104 (#105)

* Allow RelatedLink in Document. Fixes #104

ResourceIdentifier to allow multiple meta props (fixes #99) (#100)

Relationship with no "data" member. Fixed #92 (#93)

Update CHANGELOG.md (#91)

v2 release (#84)

Simplification, Formatting, Performance (#83)

Update CHANGELOG.md (#82)

Fix the link (#79)