Update example document

[bluzky]

Summary by Sourcery

Enhance the documentation of the RadioGroup component by adding an example usage section.

Documentation:

• Add example usage for the RadioGroup component in the documentation.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request updates the documentation for the SaladUI.RadioGroup module by adding a comprehensive example of how to use the radio group component. The changes are focused on improving the module's documentation to provide clearer guidance for developers using this UI component.

No sequence diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added a detailed example for the RadioGroup component usage	Inserted a code block demonstrating the structure of a radio group Showed how to use the radio_group component with multiple options Illustrated the usage of radio_group_item and label components within the radio group Demonstrated how to set name, value, and id attributes for radio group items	lib/salad_ui/radio_group.ex

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[sourcery-ai]

Hey @bluzky - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion: Consider restructuring the example for better clarity and completeness.

This could include showing how the builder parameter is obtained or passed to the radio_group_item component, which would make the example more complete and easier to understand for users of this module.

<.radio_group name="question-1" value="option-2">
  <%= for {option, label} <- [{"option-one", "Option One"}, {"option-two", "Option Two"}] do %>
    <div class="flex items-center space-x-2">
      <.radio_group_item builder={@form} value={option} id={option} />
      <.label for={option}><%= label %></.label>
    </div>
  <% end %>
</.radio_group>