Non-private link for core team

Author: tbranyen

_includes/footer.html

@@ -6,7 +6,7 @@
     <p>
       <a href="https://github.com/nodegit/nodegit/">NodeGit</a>, along with
       <a href="https://github.com/nodegit/nodegit.github.com">this website</a>,
-      is open source. It’s brought to you by <a href="https://github.com/orgs/nodegit/teams/owners">a core team</a>,
+      is open source. It’s brought to you by <a href="https://github.com/orgs/nodegit/people">a core team</a>,
       and a <a href="https://github.com/nodegit/nodegit/graphs/contributors">marvelous group of contributors</a>.
     </p>