rename DSA test vector certificate to be more clear
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index 936540e..10c20db 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -72,7 +72,8 @@
   X.509 version field set to ``0x7``.
 * ``post2000utctime.pem`` - Contains an RSA 2048 bit certificate with the
   ``notBefore`` and ``notAfter`` fields encoded as post-2000 ``UTCTime``.
-* ``dsa_root.pem`` - Contains a DSA root certificate generated using OpenSSL.
+* ``dsa_selfsigned_ca.pem`` - Contains a DSA self-signed CA certificate
+  generated using OpenSSL.
 * ``ec_no_named_curve.pem`` - Contains an ECDSA certificate that does not have
   an embedded OID defining the curve.