Update respec-vc to v3.3.5.

Author: BigBlueHat

index.html

@@ -11,7 +11,7 @@
     <script src='https://www.w3.org/Tools/respec/respec-w3c' class='remove'></script>
     <script src="./common.js" class="remove"></script>
     <script class="remove"
-      src="https://cdn.jsdelivr.net/gh/digitalbazaar/[email protected].4/dist/main.js"></script>
+      src="https://cdn.jsdelivr.net/gh/digitalbazaar/[email protected].5/dist/main.js"></script>
 
     <script class="remove">
       var respecConfig = {