Link to public repository (Github, Bitbucket, etc)
https://github.com/InkkBlott/GMS2-Anisprite

Link to documentation
https://github.com/InkkBlott/GMS2-Anisprite

Instructions for setting up your library/tool
All usage instructions are on the repo page.
The yymps is all that's needed to use the library. The demo showcases the tool's core functionality, but given the nature of it, the usage guide provides a much more noteworthy breakdown of its utility.