error[preamble-refs-title]: references to proposals with a `category` of `Networking` must use a prefix of `EIP`
 --> input.md:3:30
  |
3 | title: A sample extension to ERC-9, and EIP-10
  |                              ^^^^^ referenced here
  |
error[preamble-refs-title]: references to proposals with a `category` of `ERC` must use a prefix of `ERC`
 --> input.md:3:41
  |
3 | title: A sample extension to ERC-9, and EIP-10
  |                                         ^^^^^^ referenced here
  |