* add digest item for relay-parent to primitives
* add a relay-parent-storage-root digest as a workaround
* more docs
* deposit log in pallet-parachain-system
* even more docs
* fix duplicate imports after botched mertge
* fix hyperlinks in docs
* clean up match
Co-authored-by: Bastian Köcher <git@kchr.de>
* improve docs
* fix typo
* add number to the digest item
---------
Co-authored-by: Bastian Köcher <git@kchr.de>