[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/release_notes/voltha_2.4.rst b/release_notes/voltha_2.4.rst
index 743efd7..e4e8153 100644
--- a/release_notes/voltha_2.4.rst
+++ b/release_notes/voltha_2.4.rst
@@ -47,7 +47,7 @@
 
   - Automated tests run on both hardware and BBSim platforms, please use the VOLTHA-2.4 view under https://jenkins.lfbroadband.org/
   - Sanity test on hardware for TT workflow
-  - In Band Management of OLT on one of the ONF Menlo testing pods
+  - In Band Management of OLT on one of the LF BB Menlo testing pods
   - GPON OLT test job in Berlin pod
 
 - Scale Tests
@@ -129,7 +129,7 @@
 
 Get access credentials for https://edgecore.quickconnect.to and then login
 and navigate to File_Station -> EdgecoreNAS, and then the folder
-/ASXvOLT16/OpenOLT_Agent/From_ONF_Distribution/ and pick the version above
+/ASXvOLT16/OpenOLT_Agent/From_LF_BB_Distribution/ and pick the version above
 
 A full list of Jira tickets releated to the VOLTHA 2.4 release is available
 `here <https://docs.google.com/document/d/1BolYA52uJ0LVJkYz5SYPWdWamkt4J3yP6CLhH7FNjBg/edit?usp=sharing>`_ .