* Update return type for 'get_resource' function
Modified the 'get_resource' function in 'wmill/client.py' to additionally return a 'dict', providing support for dictionaries in addition to strings and None. This change caters towards use-cases where getting a dictionary resource is needed, enhancing flexibility of resource handling in Windmill client operations. Code updated in two locations for consistency.
* Update README.md for python-client
Expanded and updated the 'README.md' to include detailed explanations about the basic and advanced usage of the 'wmill' package. The previous version wasn't as comprehensive and lacked examples. Now it includes thorough usage guidance, additional explanations, and code examples. Change improves usability for new developers approaching the project.
