Mark

Fix for #623

Update doc/schema.md to fix description of tx_id in datum and redeemer

2

doc/schema.md previously stated for both `datum` and `redeemer_data` tables that `tx_id` was "The Tx table index for the transaction where this script first became available.", neither of which seems to...

## Summary When I ask the API to show me add_gateway_v1 transactions on my account via the /accounts/<acct>/roles endpoint, the min_block that gets encoded in the cursor is a block...