Update index.html

Co-authored-by: Orie Steele <orie@or13.io>

Author: marcoscaceres

index.html

@@ -390,7 +390,7 @@ <h2 id="protocol-registry">
     </h2>
     <p>
       The following are <dfn data-lt="digital credentials registry">digital
-      credentials registryls exchange protocols</dfn> that are supported by
+      credentials registry exchange protocols</dfn> supported by
       this specification.
     </p>
     <p class="note" title="Official Registry" data-cite="w3c-process">