* Re-organize thet content of the `*.proto` files.
The content of the `*.proto` files is sorted by hard fork,
then with a top-down fashion.
Sorting first by hard fork lets the reader to easily see new or modified fields.
Then, sorting with a top-down fashion lets the user to first see the big picture,
then to dive into details.
Also, the `new in <hard fork>` mentions are only written for the given hard fork.
Thus, it'll avoid in the future the majority of the fields, not initially
present in phase 0, to have the `new in <hard fork> mention`.
This commit does not bring any new functional change.
* Update proto/prysm/v1alpha1/attestation.proto
Co-authored-by: Radosław Kapka <rkapka@wp.pl>
* Update proto/prysm/v1alpha1/beacon_state.proto
Co-authored-by: Radosław Kapka <rkapka@wp.pl>
* Fix Radek's comment.
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Co-authored-by: Radosław Kapka <rkapka@wp.pl>
