[VOL-3960] Adding VOLTHA 2.7 release notes alongside PM counters update and ONU SW update.

Change-Id: I37a99f566b63c7315458fce152481ff471a78879
diff --git a/release_notes/voltha_2.6.rst b/release_notes/voltha_2.6.rst
index 57be200..c4a7f0b 100644
--- a/release_notes/voltha_2.6.rst
+++ b/release_notes/voltha_2.6.rst
@@ -60,7 +60,7 @@
 Test
 ----
 
-Voltha-2.6 tests are available on `Jenkins <https://jenkins.opencord.org/view/VOLTHA-2.6/>`_.
+Voltha-2.6 tests are available on `Jenkins <https://jenkins.opencord.org/>`_.
 
 - Multi-OLT tests with a single voltha stack on Physical Hardware and BBSim
 - Use of the full suite of tests for openonu-go, both on hardware and BBSim