Update users index.html.js -> add lets.events logo (graphql#445)

Author: guizero

site/users/index.html.js

@@ -596,6 +596,11 @@ var logos = [
     img: 'bynder.png',
     link: 'https://www.bynder.com'
   },
+  {
+    name: 'Lets.events',
+    img: 'letsevents.png',
+    link: 'https://lets.events'
+  },
   {
     name: 'KLM Royal Dutch Airlines',
     img: 'klm.png',