doc: Fix profiles
doc: Fix profiles

1. Add ')' to --marker
2. heat_stack_random_string.spec -> heat_stack_random_string.yaml

Change-Id: Id7230cb021222ff4df2eca2c4481995b1cf44fda

openstack/senlin,stackforge/senlin,openstack/senlin,tengqm/senlin-container,stackforge/senlin,tengqm/senlin-container,openstack/senlin