Fix shocco errors and warnings

A few Markdown-oriented issues were causing Docutils errors to
leak into the end-user docs on http://devstack.org

Change-Id: I51fa9698afb1bfb48596478d83bd1fdcd84ac52e

lib/database

@@ -9,10 +9,11 @@
 
 # This is a wrapper for the specific database backends available.
 # Each database must implement four functions:
-#   recreate_database_$DATABASE_TYPE
-#   install_database_$DATABASE_TYPE
-#   configure_database_$DATABASE_TYPE
-#   database_connection_url_$DATABASE_TYPE
+#
+# - recreate_database_$DATABASE_TYPE
+# - install_database_$DATABASE_TYPE
+# - configure_database_$DATABASE_TYPE
+# - database_connection_url_$DATABASE_TYPE
 #
 # and call register_database $DATABASE_TYPE
 
@@ -22,7 +23,9 @@ set +o xtrace
 
 
 # Register a database backend
-#  $1 The name of the database backend
+#
+#   $1 The name of the database backend
+#
 # This is required to be defined before the specific database scripts are sourced
 function register_database {
     [ -z "$DATABASE_BACKENDS" ] && DATABASE_BACKENDS=$1 || DATABASE_BACKENDS+=" $1"