[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/howto/ssh_access.rst b/howto/ssh_access.rst
index 7ee5ec4..e03efa1 100644
--- a/howto/ssh_access.rst
+++ b/howto/ssh_access.rst
@@ -8,7 +8,7 @@
 
 .. sourcecode:: shell
 
-   $ ssh-keygen -t ed25519 -f id_gerrit -C 'tux@opennetworking.org'
+   $ ssh-keygen -t ed25519 -f id_gerrit -C 'tux@lfbroadband.org'
 
 - Login and configure gerrit
 
@@ -58,7 +58,7 @@
       IdentitiesOnly yes
       AddKeysToAgent yes
       Port 29418
-      User tux@opennetworking.org
+      User tux@lfbroadband.org
 
 With ~/.ssh/config setup simply connect to the target machine:
 ==============================================================