[VOL-5009] - Create a v2.12 release notes page.

overview/releases.rst
release_notes/index.rst
release_notes/voltha_2.12.rst
-----------------------------
  o Create a skeleton release notes area for v2.12

Change-Id: Ia74075131326e0254af236d9c9edbdf8f46fa430
diff --git a/.gitignore b/.gitignore
index 9e8406b..06371ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
+# -*- makefile -*-
+
 # build related
+.venv/
 venv_docs
 doc_venv
 _build
@@ -27,3 +30,10 @@
 
 # OS
 .DS_Store
+
+# Logfiles
+log
+test-errors.*.log
+*.log
+
+# [EOF]