Feedback: Add more explicit option to show effects of PUT requests

[ANeaves]

When modifying parameters using newly created WithEndpoint components, add section to show how to use curl/httpie to get the param tree and see that changes made in the GUI (etc: via the textbox) change the values in the adapter

Additionally, change the default logging level of the example Adapter to hide the DEBUG output, and add some INFO logging to the PUT methods of some parameters, to make it more obvious when triggered events occur