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* ``many`` argument to ``Schema.jsonify`` defaults to value of the ``Schema`` instance's ``many`` attribute (:issue:`42`). Thanks :user:`singingwolfboy`.
* Attach `HyperlinkRelated` to `Marshmallow` instances. Thanks :user:`singingwolfboy` for reporting.
Support:
* Upgrade to invoke>=0.13.0.
* Updated documentation to reference `HyperlinkRelated` instead of `HyperlinkModelSchema`. Thanks :user:`singingwolfboy`.
* Updated documentation links to readthedocs.io subdomain. Thanks :user:`adamchainz`.