Documentation edits: cosmetic

overview/architecture_overview.rst
----------------------------------
   * Fixed dup "have been have been"

overview/lab_setup.rst
----------------------
   * Correct VOLTHA cases and s/the/this/.

release_notes/release_process.rst
---------------------------------
   * Updated jira notes to be more descriptive wrt edits needed.

Change-Id: I780a0835787f5e7d658c9b63451c78809114f9c9
diff --git a/overview/lab_setup.rst b/overview/lab_setup.rst
index fd24d1a..47e8921 100644
--- a/overview/lab_setup.rst
+++ b/overview/lab_setup.rst
@@ -303,10 +303,10 @@
 Configuration for in-band OLT control
 -------------------------------------
 
-If OLT is being used in in-band connectivity mode, the
+If OLT is being used in in-band connectivity mode, this
 `document <https://docs.google.com/document/d/1OKDJCPEFVTEythAFUS_I7Piew4jHmhk25llK6UF04Wg>`_
 details the configuration aspects in ONOS and the aggregation switch to
-trunk/switch in-band packets from the OLT to BNG or Voltha.
+trunk/switch in-band packets from the OLT to BNG or VOLTHA.
 
 In-band OLT software upgrade
 -------------------------------------