Formatting cleanups, doc updates and whatnot

Change-Id: Ica8298353be22f947c8e8a03d8dc29ded9cb26dd
diff --git a/lib/heat b/lib/heat
index 88535c3..32c0182 100644
--- a/lib/heat
+++ b/lib/heat
@@ -25,9 +25,14 @@
 
 # Defaults
 # --------
+
+# set up default directories
 HEAT_DIR=$DEST/heat
 HEATCLIENT_DIR=$DEST/python-heatclient
-# set up default directories
+
+
+# Functions
+# ---------
 
 # cleanup_heat() - Remove residual data files, anything left over from previous
 # runs that a clean run would need to clean up
@@ -182,6 +187,7 @@
     done
 }
 
+
 # Restore xtrace
 $XTRACE