Revert f3e8e5f Fixes #123 Useless cert_text

Author: timlegge

lib/Net/SAML2/Binding/POST.pm

@@ -57,6 +57,26 @@ path to a key used to sign the XML.
 
 =back
 
+=item B<cert>
+
+path to a certificate that is added to the signed XML.  It needs to be the
+certificate that includes the public key related to the B<key>
+
+=back
+
+=item B<cert_text>
+
+text form of the certificate in FORMAT_ASN1 or FORMAT_PEM that is used to
+verify the signed XML.
+
+=back
+
+=item B<key>
+
+path to a key used to sign the XML.
+
+=back
+
 =cut
 
 has 'cacert' => (isa => 'Maybe[Str]', is => 'ro');