First, a style guide is primarily use as a supermarket for grabbing logos and colors. So the menu should be always in sight.
For each section, allow users to grab the detail (click on a color to copy the code) and the collection: propose the download of the color codes in .txt, allow to copy all the codes in CSS and Hex format in a <pre> box, propose to download a universal .acl (Photoshop) palette file.
In each section, make it clear what can be grabbed and downloaded same descriptive button + side label to explain the usages.
Spend some more time to better showcase your fonts.
For everything: describe the usage, write an intro, tell stories. Show examples: what to do, what not to do.
Propose icons in various sizes as PNG, also as vector SVG, also as packs. Bonus, as IconJar (open source) packs. Generate all the colors the icons will be used with.
Cover all social usages: open graph, banners for everything fb instagram linkedin etc.
Thanks Vincent for the info and for sharing those precious tips.... This is AWESOME info and it will help me a lot in the future. Thanks again, have a nice Chritmas and a lot of success in your future projects.