add links for externalapi/nbi
Issue-ID: DOC-256

Change-Id: I4e236eca2cf78424ccfd40dd90a5eaf76dadc75f
Signed-off-by: Rene Robert <rene.robert@orange.com>
diff --git a/docs/guides/onap-developer/settingup/components.rst b/docs/guides/onap-developer/settingup/components.rst
index fe18e57..ec8b561 100644
--- a/docs/guides/onap-developer/settingup/components.rst
+++ b/docs/guides/onap-developer/settingup/components.rst
@@ -37,6 +37,7 @@
    SDNC - Software-Defined Networks Controller <../../../submodules/sdnc/oam.git/docs/installation.rst>
    SO - Service Orchestration <../../../submodules/so.git/docs/Install_Configure_SO.rst>
    VFC - Virtual Function Controller <../../../submodules/vfc/nfvo/lcm.git/docs/platform/installation.rst>
+   NBI - NorthBound API <../../../submodules/externalapi/nbi.git/docs/installation/installation.rst>
 
 Common Services
 ---------------