migration-guides: add more class references

(From yocto-docs rev: 29031a9da0f1a500a8b2b6a642ee553a352255f8)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/migration-guides/migration-2.3.rst b/documentation/migration-guides/migration-2.3.rst
index b79bc541c5..0b6b33d2cb 100644
--- a/documentation/migration-guides/migration-2.3.rst
+++ b/documentation/migration-guides/migration-2.3.rst
@@ -50,7 +50,7 @@ Consider the following:
    post-installation script that is installed by a function added to
    :term:`SYSROOT_PREPROCESS_FUNCS`.
 
-   For an example, see the ``pixbufcache`` class in ``meta/classes/`` in
+   For an example, see the :ref:`pixbufcache <ref-classes-pixbufcache>` class in ``meta/classes/`` in
    the :ref:`overview-manual/development-environment:yocto project source repositories`.
 
    .. note::