Docs: Move the design documents a level up
Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: Ib366994121b7c57c5f4966499c2364f339d11b05
diff --git a/docs/integration_guide/index.rst b/docs/integration_guide/index.rst
index 3599754..36a4930 100644
--- a/docs/integration_guide/index.rst
+++ b/docs/integration_guide/index.rst
@@ -75,7 +75,7 @@
TF-M provides a reference implementation of NS mailbox on multi-core platforms,
under folder ``interface/src/multi_core``.
-See :doc:`Mailbox design </technical_references/design_docs/dual-cpu/mailbox_design_on_dual_core_system>`
+See :doc:`Mailbox design </design_docs/dual-cpu/mailbox_design_on_dual_core_system>`
for TF-M multi-core mailbox design.
Interface with non-secure world regression tests