* Update docs and enable DOT-over-XCM

* Formatting

* Fixes

* Fixes

* Formatting

* Spelling

* add UmpSink config (#5032)

* Update runtime/polkadot/src/xcm_config.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>