Add GitHub link to elsewhere section

Author: whiletruelearn

layouts/index.html

@@ -46,6 +46,7 @@ <h2>~/elsewhere</h2>
   <li><a href="{{ absURL "essays/" }}">Essays</a> — longer-form writing</li>
   <li><a href="{{ absURL "stories/" }}">Stories</a> — fiction &amp; narrative pieces</li>
   <li><a href="https://www.linkedin.com/in/whiletruelearn/" target="_blank" rel="noopener noreferrer">LinkedIn</a> — work &amp; professional background</li>
+  <li><a href="https://github.com/whiletruelearn" target="_blank" rel="noopener noreferrer">GitHub</a> — code &amp; open-source</li>
   <li><a href="https://podcasts.apple.com/ru/podcast/42/id1511330786?l=en-GB" target="_blank" rel="noopener noreferrer">Podcast</a> — 42, conversations on tech &amp; life</li>
   {{ with .Site.Params.social.twitter }}<li><a href="https://twitter.com/{{ . }}" target="_blank" rel="noopener noreferrer">Twitter</a> — rants about life, the universe, and everything else</li>{{ end }}
 </ul>