Fix grammar in validation expectations section.

Co-authored-by: Ted Thibodeau Jr <[email protected]>
Co-authored-by: Dave Longley <[email protected]>

index.html

@@ -6550,27 +6550,28 @@ <h3>Credential Type</h3>
 When a [=verifier=] requests one or more [=verifiable credentials=] from a
 [=holder=], they can specify the <a href="#types">type</a> of credential(s)
 that they would like to receive. Credential types, as well as validation schemas
-for the type and each of its [=claims=], are defined by specification authors
+for each type and each of their [=claims=], are defined by specification authors
 and are published in places like the [[[VC-SPECS]]].
         </p>
 
         <p>
 The type of a credential is expressed via the <a href="#types">type</a>
 property. A [=verifiable credential=] of a specific type is expected to contain
-specific [=properties=] that can be used to determine whether or not the
-[=presentation=] meets a set of processing rules that the [=verifier=] is
-executing. By requesting [=verifiable credentials=] of a particular `type`, the
+specific [=properties=] (which might be deeply nested) that can be used to determine whether or not the
+[=presentation=] satisfies a set of processing rules that the [=verifier=]
+executes. By requesting [=verifiable credentials=] of a particular `type`, the
 [=verifier=] is able to gather specific information from the [=holder=], which
-originated  with the [=issuer=] of each [=verifiable credential=], that will
-enable it to determine the next stage of an interaction with a [=holder=].
+originated with the [=issuer=] of each [=verifiable credential=], that will
+enable the [=verifier=] to determine the next stage of an interaction with a [=holder=].
         </p>
 
         <p>
 When a [=verifier=] requests a [=verifiable credential=] of a specific type,
 there will be a set of mandatory and optional [=claims=] that are associated
-with that type. It is expected that a [=verifier=] will fail to validate
-[=claims=] that are mandatory that are not included and will ignore any
-[=claim=] that is not associated with the specific type. In other words, a
+with that type. It is expected that a [=verifier=]'s validation of a
+[=verifiable credential=] will fail when mandatory [=claims=] are not
+included, and that any [=claim=] that is not associated with the specific
+type will be ignored. In other words, a
 [=verifier=] will perform input validation on the [=verifiable credential=] it
 receives and will reject malformed input based on the credential type
 specification.