add a CRL public_bytes method
diff --git a/docs/x509/reference.rst b/docs/x509/reference.rst
index 91c5344..d060633 100644
--- a/docs/x509/reference.rst
+++ b/docs/x509/reference.rst
@@ -523,6 +523,18 @@
used to validate a signature, but use extreme caution as CRL validation
is a complex problem that involves much more than just signature checks.
+ .. method:: public_bytes(encoding)
+
+ .. versionadded:: 1.2
+
+ :param encoding: The
+ :class:`~cryptography.hazmat.primitives.serialization.Encoding`
+ that will be used to serialize the certificate revocation list.
+
+ :return bytes: The data that can be written to a file or sent
+ over the network and used as part of a certificate verification
+ process.
+
X.509 Certificate Builder
~~~~~~~~~~~~~~~~~~~~~~~~~