Fixed several sphinx WARNINGS, added more release text

Change-Id: Ia167a9d46ee48fbf27c6cd09d78fcf31f3d4aedf
diff --git a/conf.py b/conf.py
index 9290b6f..94eacfa 100644
--- a/conf.py
+++ b/conf.py
@@ -140,6 +140,7 @@
         'CODE_OF_CONDUCT.md',
         '*/CODE_OF_CONDUCT.md',
 # Ignore all:
+        'makefiles',
         '__pycache__',
         '**/__pycache__', # generated - faster traversal
         '.venv',