rfc7706: fixup links to modules

They didn't work locally for me, at least.

diff --git a/modules/rfc7706.rst b/modules/rfc7706.rst
index 1615f3302c1abb74fc78f49dc6b1416d320a9b3e..53a0e37a9b4b386fa07d7c8084314d9ed2501814 100644 (file)
--- a/modules/rfc7706.rst
+++ b/modules/rfc7706.rst
@@ -1,3 +1,3 @@
 Root on lookback (RFC 7706)
 ---------------------------
-Knot Resolver developers decided that pure implementation of :rfc:`7706` is a bad idea so it is not implemented in the form envisioned by the RFC. You can get the very similar effect without its downsides by combining `prefill <mod-prefill>`_ and `serve_stale <mod-serve_stale>`_ modules with Aggressive Use of DNSSEC-Validated Cache (:rfc:`8198`) behavior which is enabled automatically together with DNSSEC validation.
+Knot Resolver developers decided that pure implementation of :rfc:`7706` is a bad idea so it is not implemented in the form envisioned by the RFC. You can get the very similar effect without its downsides by combining :ref:`prefill <mod-prefill>` and :ref:`serve_stale <mod-serve_stale>` modules with Aggressive Use of DNSSEC-Validated Cache (:rfc:`8198`) behavior which is enabled automatically together with DNSSEC validation.