[VOL-5009] - Update release notes

[VOL-5061]

overview/releases.rst
---------------------
  o Correct start/end release dates for v2.10-v2.12 to reflect reality.

release_notes/voltha_2.12.rst
-----------------------------
  o Populate the onos apps grid with versioned artifact and VCS urls.
  o Component kafka the only holdout

howto/release/checklist.rst
howto/release/components/index.rst
howto/release/index.rst
howto/release/voltha-docs/index.rst
howto/release/voltha-docs/release_notes.rst
howto/release/branching/
howto/release/components/igmpproxy/
howto/release/components/kafka/
howto/release/components/maclearner/
howto/release/components/pppoeagent/
howto/release/voltha-docs/release_history.rst
---------------------------------------------
  o Add more random content and links for release dependencies and tasks.

Change-Id: I31338488a4e626a97435429a36e200d54cf6267e
diff --git a/howto/release/components/igmpproxy/index.rst b/howto/release/components/igmpproxy/index.rst
new file mode 100644
index 0000000..d6c96f4
--- /dev/null
+++ b/howto/release/components/igmpproxy/index.rst
@@ -0,0 +1,17 @@
+ONOS Component: mcast
+=====================
+
+Repository: igmpproxy
+App: igmpproxy
+
+Dependencies (pom.xml)
+----------------------
+
+- sadis
+
+Dependencies (Maven plugins)
+----------------------------
+
+- spotbugs-maven-plugin  v4.7.3.4
+- findsecbugs-plugin     v1.12.0
+
diff --git a/howto/release/components/index.rst b/howto/release/components/index.rst
index 3910d27..7001c48 100644
--- a/howto/release/components/index.rst
+++ b/howto/release/components/index.rst
@@ -4,6 +4,14 @@
 .. toctree::
    :maxdepth: 1
 
+   igmpproxy/index
+   kafka/index
+   maclearner/index
+   mcast/index
+   olt/index
+   olttopology/index
+   pppoeagent/index
+
    onos_components
    onos_dependencies
    maven_plugins
@@ -19,13 +27,6 @@
    atomix/index
    onos/index
 
-   maclearner/index
-   mcast/index
-   olt/index
-   olttopology/index
-   pppoeagent/index
-
-
 See Also
 --------
    `VOLTHA and ONOS update procedures <https://docs.voltha.org/master/operations/software-upgrade.html?highlight=set%20global%20image>`_.
diff --git a/howto/release/components/kafka/index.rst b/howto/release/components/kafka/index.rst
new file mode 100644
index 0000000..113f6a4
--- /dev/null
+++ b/howto/release/components/kafka/index.rst
@@ -0,0 +1,21 @@
+ONOS Component: mcast
+=====================
+
+Repository: kafka-onos (ssh://gerrit.opencord.org:29418/kafka-onos)
+App: kafka
+
+Dependencies (pom.xml)
+----------------------
+
+- sadis
+- onlab-junit
+
+Dependencies (Maven plugins)
+----------------------------
+
+- spotbugs-maven-plugin  v4.7.3.4
+- findsecbugs-plugin     v1.12.0
+- `org.apache.servicemix.bundles.kafka-clients <https://mvnrepository.com/artifact/org.apache.servicemix.bundles/org.apache.servicemix.bundles.kafka-clients>`_
+
+  - 3.4.0_1
+  - 1.1.1_1
diff --git a/howto/release/components/maclearner/index.rst b/howto/release/components/maclearner/index.rst
index 5020439..05327d6 100644
--- a/howto/release/components/maclearner/index.rst
+++ b/howto/release/components/maclearner/index.rst
@@ -1,6 +1,9 @@
 ONOS Component: maclearner
 ==========================
 
+Repository: mac-learning
+App: maclearner
+
 Dependencies (pom.xml)
 ----------------------
 
@@ -10,4 +13,14 @@
 
 `gerrit:mac-learning <https://gerrit.opencord.org/plugins/gitiles/mac-learning/+/refs/tags/1.2.1>`_
 `maven central:maclearner <https://central.sonatype.com/artifact/org.opencord/maclearner/1.2.1>`_
+
 pom.xml:maclearner
+==================
+- sadis
+- onlab-junit
+
+Dependencies (Maven plugins)
+----------------------------
+
+- spotbugs-maven-plugin  v4.7.3.4
+- findsecbugs-plugin     v1.12.0
diff --git a/howto/release/components/pppoeagent/index.rst b/howto/release/components/pppoeagent/index.rst
index 9e81c46..4de5f77 100644
--- a/howto/release/components/pppoeagent/index.rst
+++ b/howto/release/components/pppoeagent/index.rst
@@ -12,3 +12,15 @@
 - Components
 
   - sadis
+
+- Repository
+
+  `pppoeagent <https://gerrit.opencord.org/plugins/gitiles/pppoeagent>`_
+  `gerrit:122 <https://gerrit.opencord.org/plugins/gitiles/pppoeagent/+/refs/tags/1.2.2>`_
+  `github:122 <https://github.com/opencord/pppoeagent/tree/1.2.2>`_
+
+- `Maven Central <https://central.sonatype.com/search?q=pppoeagent>`_
+
+  - `pkg:121 <https://central.sonatype.com/artifact/org.opencord/pppoeagent/1.2.1>`_
+  - `api:121 <https://central.sonatype.com/artifact/org.opencord/pppoeagent-api/1.2.1>`_
+  - `app:121 <https://central.sonatype.com/artifact/org.opencord/pppoeagent-app/1.2.1>`_