message: Better documentation for genesis.timestamp
  ... in chainspec.toml files
diff: 9fef7d156142cd6b07efef585990d1f1 accounts.csv
  -a9781babca8da061e72e490511845126 chainspec.toml
  +5b6318339389e208fc9e0a57a92eec0e chainspec.toml
  