Add missing reference.

doc/ssl/ssl.pod

diff --git a/doc/ssl/ssl.pod b/doc/ssl/ssl.pod
index 2a48b09..7ec6555 100644
--- a/doc/ssl/ssl.pod
+++ b/doc/ssl/ssl.pod
@@ -661,6 +661,7 @@
 L<SSL_CTX_sess_set_cache_size(3)|SSL_CTX_sess_set_cache_size(3)>,
 L<SSL_CTX_sess_set_get_cb(3)|SSL_CTX_sess_set_get_cb(3)>,
 L<SSL_CTX_sessions(3)|SSL_CTX_sessions(3)>,
+L<SSL_CTX_set_cipher_list(3)|SSL_CTX_set_cipher_list(3)>,
 L<SSL_CTX_set_client_CA_list(3)|SSL_CTX_set_client_CA_list(3)>,
 L<SSL_CTX_set_default_passwd_cb(3)|SSL_CTX_set_default_passwd_cb(3)>,
 L<SSL_CTX_set_generate_session_id(3)|SSL_CTX_set_generate_session_id(3)>,