Link to public repository (Github, Bitbucket, etc)
https://github.com/Sidorakh/http.gml

Link to documentation (if more than a single script)
https://docs.sidorakh.net/http.gml

Instructions for setting up your library/tool
1. Download the latest .yymp from releases
2. Open your existing GameMaker project and drag the .yymp file into the IDE (or go to the Tools menua nd select Import Local Package)
3. Ensure you import the http.gml folder in "Extensions", although you can leave out anything in the "Example" subfolder
4. You're done!