📖  Update `bento-selector` README.md (#36377)
📖  Update `bento-selector` README.md (#36377)

* [`bento-selector`] Add README.md for selector.

* [`bento-selector`] Populate the content for README.md.

* [`bento-selector`] Respond to PR comments.

* [`bento-selector`] Update README examples to use correct references.

* [`bento-selector`] Update the Preact Events section in README.md

* [`bento-selector`] Respond to PR comments.
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