Help needed with GitHub pages/Jekyll/minima theme

I need help with yaml config for minima theme for my packages documentation site:

I can't get links in the header nor social links to display properly:

If you have experience with Jekyll/minima and can help me achieve header/footer links I want without changing the documents structure (directory for each package hosting package README + screenshots), just by manipulating the config yaml, please let me know.

Thanks in advance!