Bulk wiki url fix for 'make linkcheck'

howto/code/linting.rst
howto/elections/urls
howto/release/components/onos_components.rst
howto/release/preparation.rst
howto/release/voltha-docs/release_notes.rst
index.rst
overview/contributing.rst
overview/contributing/copyright.rst
release_notes/template.rst
release_notes/voltha_2.12.rst
---------------------------------------------
  o Wiki server attack rendered several doc links unusable.
  o Overhead for make linkcheck target is painful, 1-3 min timeout per URL.
  o Redirect broken URLs to wiki.opencord.org to avoid overhead.

Change-Id: I1a0045c4b71a936a55ff003b810cb7a1611a28a2
diff --git a/release_notes/template.rst b/release_notes/template.rst
index 48313da..8963353 100644
--- a/release_notes/template.rst
+++ b/release_notes/template.rst
@@ -123,6 +123,6 @@
 
   - `onf/VOLTHA <https://opennetworking.org/voltha/>`_
   - `docs.voltha.org <https://docs.voltha.org>`_
-  - `Wiki <https://wiki.opennetworking.org/display/VOLTHA/Voltha>`_
+  - `Wiki <https://wiki.opencord.org>`_
 
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