`AgentEventLogger` only supports streaming responses, so I suggest adding a comment near the bottom of `demo_script.py` letting the user know this, e.g., if they change the `stream` value to `False` in the call to `create_turn`.
# What does this PR do?
This PR adds the quickstart as a file to the docs so that it can be more
easily maintained and run, as mentioned in
https://github.com/meta-llama/llama-stack/pull/2800.
## Test Plan
I could add this as a test in the CI but I wasn't sure if we wanted to
add additional jobs there. 😅
Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>