* doc(utils): remove trailing spaces
* fix(consensus): update Zebra's hard-coded checkpoint lists
This updates the checkpoint lists as at 2022-02-22:
- mainnet: to the latest finalized tip
- testnet: to the latest Canopy checkpoint,
because we expect a NU5 testnet rollback
* doc(consensus): Add example commands to update the checkpoints
* create readme for utils and checkpoints
* add link to checkpoint usage to book
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Co-authored-by: teor <teor@riseup.net>