Fix grammar/indents in enveloped VPs section.

Co-authored-by: Ted Thibodeau Jr <[email protected]>
Co-authored-by: David I. Lehn <[email protected]>

index.html

@@ -2511,7 +2511,7 @@ <h4>Enveloped Verifiable Presentations</h4>
 
           <p>
 It is possible to express a [=verifiable presentation=] that has been secured
-using a securing mechanism that "envelopes" the payload, such as
+using a mechanism that "envelops" the payload, such as
 [[[?VC-JOSE-COSE]]] [[?VC-JOSE-COSE]]. This can be accomplished by using an
 object that has a `type` of `EnvelopedVerifiablePresentation`.
           </p>
@@ -2526,23 +2526,23 @@ <h4>Enveloped Verifiable Presentations</h4>
 terms as defined by the base context provided by this specification. The `id`
 value of the object MUST be a `data:` URL [[RFC2397]] that expresses a secured
 [=verifiable presentation=] using an
-<a href="#dfn-enveloping-proof">enveloping</a> security scheme, such as
+<a href="#dfn-enveloping-proof">enveloping</a> securing mechanism, such as
 [[[VC-JOSE-COSE]]] [[VC-JOSE-COSE]]. The `type` value of the object MUST be
 `EnvelopedVerifiablePresentation`.
             </dd>
           </dl>
 
-        <p>
+          <p>
 The example below shows an enveloped [=verifiable presentation=]:
-        </p>
+          </p>
 
-        <pre class="example nohighlight" title="Basic structure of an enveloped verifiable presentation">
+          <pre class="example nohighlight" title="Basic structure of an enveloped verifiable presentation">
 {
   "@context": "https://www.w3.org/ns/credentials/v2",
   <span class="highlight">"id": "data:application/vp+ld+json+jwt;eyJraWQiO...zhwGfQ",
   "type": "EnvelopedVerifiablePresentation"</span>
 }
-        </pre>
+          </pre>
 
         </section>