[Openid-specs-ab] Issue #1718: Credential Request example does not match description (openid/connect)

[Richard Barnes]

New issue 1718: Credential Request example does not match description
https://bitbucket.org/openid/connect/issues/1718/credential-request-example-does-not-match

Richard Barnes:

The example request in `#credential_request` has a `types` field, which is not present in the list of defined fields.  We should either add a definition or remove the field from the example.