Minor howto and release doc additions

howto/code/voltha-protos.rst
----------------------------
  - Document virtualenv setup and lint command.
  - Include notes about header longintrepr.h, early VGC related failure.

howto/release/overview.rst
--------------------------
  - Review release overview docs for content.
  - URL will be linked to from the wiki release tracking page.

Change-Id: I1f45834bb445ba2cc31de33cc4b45653db91f111
diff --git a/VERSION b/VERSION
index f9595dd..aaec3e4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.12.44
+2.12.45-dev
diff --git a/howto/code/voltha-protos.rst b/howto/code/voltha-protos.rst
index 71da5e1..9420b0c 100644
--- a/howto/code/voltha-protos.rst
+++ b/howto/code/voltha-protos.rst
@@ -13,7 +13,6 @@
 -------------------------
 
 .. code:: bash
-
     git clone ssh://gerrit.opencord.org:29418/voltha-protos.git
     cd voltha-protos
     vi ...
@@ -96,3 +95,38 @@
    * - make lint LOCAL_FIX_PERMS=1
      - | Syntax check sources for problems prior to checkin.
        | LOCAL_FIX_PERMS=1 (optional) can workaround docker related permission problems.
+
+Problems with pip install
+-------------------------
+
+- grpcio `VOL-5348 <https://jira.opencord.org/browse/VOL-5348>`__
+
+  - Clone repo.
+  - Create a skeleton pytyon virtualenv.
+  - From requirements.txt file entries, pip install failing versioned package.
+
+.. code:: bash
+   :caption: Pip install debugging
+
+   # Debug using virtualenv
+   % virtualenv -p python3 .venv
+   % source .venv/bin/activate
+   % pip install grpcio==1.39.0
+
+   # Debug using makefile target 'venv'
+   % echo > requirements.txt
+   % make venv
+   % git checkout requirements.txt
+   % pip install -r requirements.txt
+
+longintrepr.h
+^^^^^^^^^^^^^
+
+.. code:: bash
+   :caption: Include missing header
+
+   mkdir -p include
+   pusdh include
+   find /usr/include -name 'longintrepr.h' -print0 | xargs -0 -I'{}' ln -s {} .
+   popd include
+   export CFLAGS='-I./include'
diff --git a/howto/release/overview.rst b/howto/release/overview.rst
index 1977568..95041e7 100644
--- a/howto/release/overview.rst
+++ b/howto/release/overview.rst
@@ -1,5 +1,5 @@
-Release overview (WIP)
-======================
+Release overview
+================
 
 For a VOLTHA release several actions and patches are applied to each repository.
 Release also happens in a hierarchial manner due to dependencies.
@@ -12,10 +12,13 @@
 
 - For release create an initial baseline build to verify no pre-existing corruption or test failures are present.
 
-  - Baseline builds contain bulk cosmetic changes which may include:
+  - Baseline builds contain no logic changes, only bulk cosmetic changes which may include:
 
     - Copyright notice ending date change.
-    - Cosmetic comemnt changes in source.
+
+      - Bulk edit scripts: `gather-and-update.sh <https://github.com/joey-onf/copyright/blob/origin/master/gather-and-update.sh>`_, `morph.pl <https://github.com/joey-onf/copyright/blob/origin/master/morph.pl>`_.
+
+    - Cosmetic comment changes in source.
     - Syntax formatting (gofmt -s -e -w)
 
   - Baseline builds may also remove suffixes like -dev from the VERSION file.
@@ -37,6 +40,10 @@
 
   - Update go.mod version strings to be appropriate for branch={voltha-2.12, master}
 
+- Extra credit
+
+  - Run the `pre-commit hook script <https://pre-commit.com/>`_ and cleanup any linting problems reported.
+
 NOTE
 
 ::
@@ -57,3 +64,9 @@
 
 - Add document references to existing release pages.
 - Link to repo dependencies in howto/release/repositories
+
+See Also
+--------
+
+- https://docs.voltha.org/master/release_notes/template.html?highlight=howto
+- `Release Notes <https://docs.voltha.org/master/release_notes/index.html>`_: `template <https://docs.voltha.org/master/release_notes/template.html>`