Fix typo in vocabulary diagram description.

Author: msporny

vocab/credentials/v2/template.html

@@ -284,7 +284,7 @@ <h2>Diagram description</h2>
         </p>
         <p>
           On the right hand side of the column there is an extra column of ellipses styled as "Class", and labeled as "CredentialSchema",
-          "CredentialStatus", "CredentialEvidence", "RefreshService", "ConfidenceMethos", and "TermsOfUse".
+          "CredentialStatus", "CredentialEvidence", "RefreshService", "ConfidenceMethod", and "TermsOfUse".
           The Property boxes labeled as "credentialSchema", "credentialStatus", "credentialEvidence,
           "refreshService", "confidenceMethod", and "termsOfUse" are all connected by connecting lines styled as Range to these
           ellipses, respectively.