Script, which splits "GitHub Gist" logo in two parts: link to Github and link to Gist

split_gist_logo.js

a = document.querySelector('a[aria-label="Gist Homepage "]');
githubSvg = document.querySelector('.octicon-logo-github');
gistSvg = document.querySelector('.octicon-logo-gist');

var githubLink = a.cloneNode(false);
githubLink.href = "https://github.com";
githubLink.appendChild(githubSvg);

var gistLink = a.cloneNode(false);
gistLink.appendChild(gistSvg);

linksParent = document.querySelector('.Header-item');
linksParent.appendChild(githubLink);
linksParent.appendChild(document.createTextNode(' '));
linksParent.appendChild(gistLink);