Add Jetbrains logo

Author: verwoerd

layouts/partials/site-footer.html

@@ -1,6 +1,12 @@
 <footer class="bg-white bottom-0 w-100" role="contentinfo">
     <div class="flex flex-column justify-around pa3 pb5">
         <div class="flex justify-between w-100 center sponsor">
+            <div class="flex flex-column center">
+                <a href="" target="_blank">
+                    <img src="/sponsors/Jetbrains.svg" alt="Jetbrains" width="130px" style="padding-top: 20px; padding-bottom: 25px;">
+                </a>
+                <span>Platinum Sponsor</span>
+            </div>
             <div class="flex flex-column center">
                 <a href="" target="_blank">
                     <img src="/sponsors/Janestreet.svg" alt="Jane Street" height="130px">