add more OCSP response vectors (#4445)

* add more OCSP response vectors

* another vector and better docs
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 41d1f57..0d1eea1 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -413,6 +413,13 @@
 ~~~~~~~~~~~~~~~~~~~~~~~
 * ``x509/ocsp/resp-sha256.der`` - An OCSP response for ``cryptography.io`` with
   a SHA256 signature.
+* ``x509/ocsp/resp-unauthorized.der`` - An OCSP response with an unauthorized
+  status.
+* ``x509/ocsp/resp-revoked.der`` - An OCSP response for ``revoked.badssl.com``
+  with a revoked status.
+* ``x509/ocsp/resp-delegate-unknown-cert.der`` - An OCSP response for an
+  unknown cert from ``AC Camerafirma``. This response also contains a delegate
+  certificate.
 
 Custom X.509 OCSP Test Vectors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~