On your repo that you want to add the icons to, create an issue. Drag and drop the icon file into the issue window. Wait for it to download, then it will give you a link. Copy and paste this link into ...

This would explain why you're not seeing the "Upload File" button. Since you already created your repository without a README, you can add one by clicking on the "README" link (this is shown in your ...

Learn how to add a GitHub ... Desktop tutorial .yml file and README are there. Congratulations! You’ve just connected VD Code to both your GitHub account and a GitHub repository.