chore: tidy up index.html (#197)

Co-authored-by: samuelgoto <[email protected]>

Author: github-actions[bot]

index.html

@@ -225,16 +225,16 @@ <h3>
       identify credential.
     </p>
     <p>
-      The {{DigitalCredentialRequest/protocol}} member's value is be one of
-      the well-defined keys defined in [[[#protocol-registry]]] or any other
-      custom one.
+      The {{DigitalCredentialRequest/protocol}} member's value is be one of the
+      well-defined keys defined in [[[#protocol-registry]]] or any other custom
+      one.
     </p>
     <h3>
       The `data` member
     </h3>
     <p>
-      The <dfn data-dfn-for="DigitalCredentialRequest">data</dfn> member is
-      the [=digital credential/request data=] to be handled by the holder's
+      The <dfn data-dfn-for="DigitalCredentialRequest">data</dfn> member is the
+      [=digital credential/request data=] to be handled by the holder's
       software, such as a digital wallet.
     </p>
     <h2>