Add verify method on CertificateSigningRequest
diff --git a/docs/x509/reference.rst b/docs/x509/reference.rst
index 8bb3f40..568eb40 100644
--- a/docs/x509/reference.rst
+++ b/docs/x509/reference.rst
@@ -761,6 +761,15 @@
         key embedded in the CSR). This data may be used to validate the CSR
         signature.
 
+    .. method:: verify()
+
+        .. versionadded:: 1.3
+
+        :raises cryptography.exceptions.InvalidSignature: If the signature does
+            not validate.
+
+        Verifies the CSR signature.
+
 X.509 Certificate Revocation List Builder
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~