* **Breaking:**
  * The type of `ReorderableFragment::dom_key` has changed from `usize` to `u32`.
    > This change comes with expanded documentation on `Node::Keyed`,
    > which includes a usage example!

* Revisions
  * Added new "Usage Notes" section to the crate documentation.
  * Added SECURITY.md to package.
    > This file contains information on how to report vulnerabilities,
    > as well as on how to subscribe to vulnerability advisories and/or crate update notifications in general.