Fixed several sphinx WARNINGS, added more release text

Change-Id: Ia167a9d46ee48fbf27c6cd09d78fcf31f3d4aedf
diff --git a/howto/release/components/onos_components.rst b/howto/release/components/onos_components.rst
index cc2af3c..bf4fb82 100644
--- a/howto/release/components/onos_components.rst
+++ b/howto/release/components/onos_components.rst
@@ -45,12 +45,19 @@
      - master (?)
 
 
-  - Jenkins jobs from `release matrix: v2.12 <https://wiki.opennetworking.org/display/VOLTHA/v2.12+-+Jenkins+jobs+and+failures>`_
-    - `changeset approval for job merge<https://gerrit.opencord.org/q/owner:do-not-reply%2540opennetworking.org>`_
+Jenkins Jobs
+^^^^^^^^^^^^
+
+- Jenkins jobs from `release matrix: v2.12 <https://wiki.opennetworking.org/display/VOLTHA/v2.12+-+Jenkins+jobs+and+failures>`_
+
+    - `changeset approval for job merge <https://gerrit.opencord.org/q/owner:do-not-reply%2540opennetworking.org>`_
     - pom.xml non-SNAPSHOT (first approved changeset)
+
       - `licensed <https://jenkins.opencord.org/job/verify_sadis_licensed/>`_
       - `verify <https://jenkins.opencord.org/job/verify_sadis_maven-test/>`_
+
     - pom.xml non-SNAPSHOT (second approved changeset)
+
       - `publish <https://jenkins.opencord.org/job/maven-publish_sadis/>`_
 
    - Job will modify pom.xml and create pull requests based on version strings.