`preamble-order`

The preamble headers are in the correct order.

Examples

error[preamble-order]: preamble header `type` is out of order
 --> eip-20.md
  |
5 | type: Standards Track
  |
  = help: `type` should come after `status`

error[preamble-order]: preamble has extra header(s)
 --> eip-20.md
  |
5 | header: value1
  | ^^^^^^ unrecognized header
  |

Explanation

preamble-order makes sure that the fields in the front matter (or preamble) are always in the same order, and that there are no extra fields. See EIP-1 for the list of fields and their order.