preamble-refs-...

# `preamble-refs-...`

ERCs referenced in the `...` header use the `ERC-` prefix.

## Examples

    error[preamble-refs-description]: references to proposals with a `category` of `ERC` must use a prefix of `ERC`
     --> eip-2612.md:4:14
      |
    4 | description: EIP-20 approvals via EIP-712 secp256k1 signatures
      |              ^^^^^^ referenced here
      |

    error[preamble-refs-title]: references to proposals with a `category` of `ERC` must use a prefix of `ERC`
     --> eip-2612.md:3:29
      |
    3 | title: Permit Extension for EIP-20 Signed Approvals
      |                             ^^^^^^ referenced here
      |

## Explanation

The `preamble-refs-...` family of lints ensures that any references to proposals in the ERC category use an ERC prefix (ERC-1234), and EIP is used for everything else (EIP-1234).