Fix spacing and grammar in "group privacy" change.

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

index.html

@@ -253,7 +253,7 @@ <h3>Conceptual Framework</h3>
 Another benefit of using a bitstring is that it enables large numbers of
 <a>verifiable credential</a> statuses to be placed in the same  list.
 This specification utilizes a minimum bitstring length of 131,072 (16KB). This
-population size ensures an adequate amount of group  privacy in the average case.
+population size ensures an adequate amount of group privacy in the average case.
 If better group privacy is required, the bitstring can be made to be larger.
         </p>
 
@@ -903,9 +903,9 @@ <h3>Malicious Issuers and Verifiers</h3>
       </p>
       <p>
 A malicious <a>issuer</a> might intentionally attack group privacy by creating a
-unique status list per credential issued in order to establish a 1-1 mapping to track
+unique status list per credential issued in order to establish a one-to-one mapping to track
 when a <a>verifier</a> processes a specific credential. Similarly, they could establish
-another a 1-1 mapping by using a different cryptographic key for every credential
+another a one-to-one mapping by using a different cryptographic key for every credential
 issued that is tracked in a status list.
       </p>
       <p>