Binding Proof Chains Together: Wording improvements.

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

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@@ -3111,10 +3111,10 @@ <h3>Verify Proof Sets and Chains</h3>
 integrity of a <a>secured data document</a>, achieved by verifying every
 proof in <var>allProofs</var>. Other approaches are possible, particularly if
 it is only desired to verify a subset of the proofs contained in
-<var>allProfs</var>. If another approach is taken to verify only a subset of the
-proofs, then it is important to note any proof with <code>previousProof</code>
-in that subset can only be considered verified if the proofs it references are
-also considered verified.
+<var>allProofs</var>. If another approach is taken to verify only a subset of the
+proofs, then it is important to note that any proof in that subset with a
+<code>previousProof</code> can only be considered verified if the proofs it
+references are also considered verified.
         </p>
         <p>
 Required input is a