Replaced the official schema URL (#237)

Author: iherman

index.html

@@ -293,7 +293,7 @@ <h3>JsonSchemaCredential</h3>
                 The value of the <code>credentialSchema</code> property MUST always be set to:
                 <pre title="Value of a JsonSchemaCredential's credentialSchema property">
                 {
-                  "id": "https://www.w3.org/2022/credentials/v2/json-schema-credential-schema.json",
+                  "id": "https://www.w3.org/ns/credentials/json-schema/v2.json",
                   "type": "JsonSchema",
                   "digestSRI": "sha384-S57yQDg1MTzF56Oi9DbSQ14u7jBy0RDdx0YbeV7shwhCS88G8SCXeFq82PafhCrW"
                 }
@@ -387,7 +387,7 @@ <h3>JsonSchemaCredential</h3>
                 "issuer": "https://example.com/issuers/14",
                 "issuanceDate": "2010-01-01T19:23:24Z",
                 "credentialSchema": {
-                  "id": "https://www.w3.org/2022/credentials/v2/json-schema-credential-schema.json",
+                  "id": "https://www.w3.org/ns/credentials/json-schema/v2.json",
                   "type": "JsonSchema",
                   "digestSRI": "sha384-S57yQDg1MTzF56Oi9DbSQ14u7jBy0RDdx0YbeV7shwhCS88G8SCXeFq82PafhCrW"
                 },
@@ -440,7 +440,7 @@ <h4>jsonSchema</h4>
                    "issuer": "https://example.com/issuers/14",
                    "issuanceDate": "2010-01-01T19:23:24Z",
                    "credentialSchema": {
-                     "id": "https://www.w3.org/2022/credentials/v2/json-schema-credential-schema.json",
+                     "id": "https://www.w3.org/ns/credentials/json-schema/v2.json",
                      "type": "JsonSchema",
                    },
                    "credentialSubject": {