Add referrer to transloadit.com link (#3116)

website/themes/uppy/layout/layout.ejs

@@ -41,7 +41,7 @@ if (page.series) {
     <div class="page">
       <div class="TransloaditBar js-TransloaditBar">
         <div class="TransloaditBar-about">
-          <a class="TransloaditBar-logo" href="https://transloadit.com/" target="_blank" rel="noopener noreferrer">
+          <a class="TransloaditBar-logo" href="https://transloadit.com/" target="_blank" rel="noopener">
             <img class="TransloaditBar-logoImg" src="/images/transloadit-white-glyph.svg" width="20" height="20" alt="Transloadit">
           </a>
           <span>Uppy is an open source project by <a class="TransloaditBar-link" href="https://transloadit.com/" target="_blank">Transloadit</a></span>