Document explicitly which functions create tasks

[pzingg]

Regardless of option settings, these two methods will create long-running tasks that must be polled or waited on.

1. put_experimental_parameters (or its csv variant) creates a "space" task
2. generate_design creates a "generate" task

But if the auto_generate_next_design option is set and there are any remaining generations to be designed in the session, then put_experiments (or its csv variant) will automatically start a "generate" task after it has uploaded the experiments to the server. The task information will then be available in the "task" attribute of the result.

[pzingg]

The documentation in daptics_client.py in PR #22 is now correct. Need to bring the notebooks' documentation to be in line with the client's.

[pzingg]

Better documentation in v0.9.2 with auto_ options.