fix typo

Signed-off-by: George <[email protected]>

index.html

@@ -1357,7 +1357,7 @@ <h2>Public Keys</h2>
 It is RECOMMENDED that <a href="https://tools.ietf.org/html/rfc7517">JWK</a> <code>kid</code> values are set to the <a href="https://tools.ietf.org/html/rfc7638">public key fingerprint</a>. 
 It is RECOMMENDED that verification methods that use JWKs to represent their 
 public keys utilize the value of <code>kid</code> as their fragment identifier.
-See the first key in <a href="#example-11-various-public-keys">EXAMPLE 11</a> for an example of a public key with a compound key identifier.
+See the first key in <a href="#example-12-various-public-keys">EXAMPLE 12</a> for an example of a public key with a compound key identifier.
       </p>
 
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