[Feature]: Update Docs on Saving Module

[HeyItsGilbert]

Problem statement

#125 was opened because a user wanted to save modules.

Proposed solution

Gael added a helpful comment and we should capture that for other users to discover.

Alternatives considered

No response

Willing to contribute?

No — I am requesting someone else implement this

Additional context

No response

[qorexdevs]

this looks workable. i can draft the docs for the module save flow and add a short example if you want. one thing to confirm: should the page stay focused on saving modules only, or also mention what happens on rerun when a module is already saved?

[HeyItsGilbert]

I didn't even think about that. Good catch. Document both if you can.