[VOL-5545] Update voltha docs

- release notes for VOLTHA versions 2.6 to 2.15 with new Jira links and adjust release schedule details
- update old links
- remove ONF references and links
- update e-mail links
- update copright notices

Change-Id: Id6be18986a8f52f2dfcc07e2b0d2efcb0ae1c0e4
Signed-off-by: serkant.uluderya <serkant.uluderya@netsia.com>
diff --git a/overview/jenkins_node.rst b/overview/jenkins_node.rst
index 962d4a9..4d796c8 100644
--- a/overview/jenkins_node.rst
+++ b/overview/jenkins_node.rst
@@ -16,7 +16,7 @@
 ------------------------------
 
 A good guide to do this can be found at `<https://devopscube.com/setup-slaves-on-jenkins-2/>`_.
-At ONF we setup one of the node in the Kubernetes cluster as Jenkins Agent, but that is not mandatory
+At LF BB we setup one of the node in the Kubernetes cluster as Jenkins Agent, but that is not mandatory
 as long as ``kubectl`` installed on the Jenkins Agent can interact with the cluster.
 
 Prerequisites for this step are listed in the page, but reported here for your convenience: