Updated documents

1. Remove harbor references
2. Using clone commands using annonymous https
3. Added more notes & diagrams in the configuration

Change-Id: Iaaf5be0b2a1065f58d8b9c3efcba408056539535
diff --git a/testing/sdcore_testing.rst b/testing/sdcore_testing.rst
index b1f0f82..244ab46 100644
--- a/testing/sdcore_testing.rst
+++ b/testing/sdcore_testing.rst
@@ -206,8 +206,7 @@
 
 1. `omec_c3po_container_remote <https://jenkins.opencord.org/job/omec_c3po_container_remote/>`_ (public)
 2. `omec_Nucleus_container_remote <https://jenkins.opencord.org/job/omec_Nucleus_container_remote/>`_ (public)
-3. `omec_upf-epc_container_remote <https://jenkins.opencord.org/job/omec_upf-epc_container_remote/>`_ (public)
-4. `omec_spgw_container_remote` (private, under member-only folder)
+3. `omec_spgw_container_remote` (private, under member-only folder)
 
 And the jobs run on Aether Jenkins include