Improve internal documentation links

Issue-ID: CPS-749
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: I0aacfe86234fb56a0edf8b28f1f255d9052048ed
diff --git a/docs/modeling.rst b/docs/modeling.rst
index f67b8a4..a69eec5 100644
--- a/docs/modeling.rst
+++ b/docs/modeling.rst
@@ -10,4 +10,4 @@
    :maxdepth: 1
 
 The DMI-Plugin acts as a proxy and as such does not have its own data model. For more information on the data which
-is passed through the DMI-Plugin, please refer to :ref:`NCMP Modeling<onap-cps:ncmp-modelling>`.
+is passed through the DMI-Plugin, please refer to :ref:`NCMP Modeling<onap-cps:cps_ncmp_modelling>`.