Add a section on LLM usage

[K-Meech]

We should add a paragraph or two to the first episode mentioning LLM usage e.g.:

• Why is it still useful to learn python / napari?
• Points around it letting you understand the output of these tools / refine your code / improve prompts
• The potential for mistakes / inefficient code from LLMs

Something along the lines of what has been added to other Carpentries courses recently. If the new LLM focused Carpentries courses are available, we could also link to them.