docs: spec of SafeBag format
This spec defines the TLV-based format of SafeBag, replacing the
previous SecureBag which uses DER-based encoding.
Change-Id: I001153bd3f4246a0f84656167b00c6387b2fea07
Refs: #3048
diff --git a/docs/tutorials/security-library.rst b/docs/tutorials/security-library.rst
index 30d3de0..8ee8d40 100644
--- a/docs/tutorials/security-library.rst
+++ b/docs/tutorials/security-library.rst
@@ -251,7 +251,7 @@
%%%%%%%%%%%%%%%%%
The process of signing Interests according to the :doc:`Signed Interest specification
-<signed-interest>` is exactly the same as the process of signing Data packets:
+<../specs/signed-interest>` is exactly the same as the process of signing Data packets:
.. code-block:: cpp