adding Trifork as a sponsor

Author: BTroj

_includes/sponsors.html

@@ -42,6 +42,9 @@ <h2 class="sponsor-title">Gold Sponsors</h2>
             <a href="https://www.dnsimple.com/" target="_blank">
                 <img src="{{site.baseurl}}/assets/images/sponsors/dnsimple-logo-blue.png" alt="DNSimple" />
             </a>
+            <a href="https://us.trifork.com/" target="_blank">
+                <img src="{{site.baseurl}}/assets/images/sponsors/Trifork_logo_RGB.png" alt="Trifork" />
+            </a>
 <!--
         <a href="https://www.erlang-solutions.com" target="_blank">
             <img src="{{site.baseurl}}/assets/images/sponsors/esl logo.svg" alt="Erlang Solutions" />