One thing to remember
A strong repo is easy to review. A stranger should quickly see where the app starts, where the code lives, and whether the project can be run safely.
Clean the shape
Start with the top-level view. If the root folder has random files, old drafts, and final-v2 names, clean it before you write a better README.
Keep the structure simple. Do not add folders just to look serious. Use names people understand.