message: fix(specs): Use alias syntax to address long lines
diff: @@ -133,8 +133,8 @@ The Optimism Portal serves as both the entry and exit point to the Optimism L2.
  the [DepositFeed](./deposits.md#deposit-contract) contract, and in addition provides the following interface for
  withdrawals:
  -- [`WithdrawalTransaction` type](https://github.com/ethereum-optimism/optimism/blob/6c6d142d7bb95faa11066aab5d8aed7187abfe38/packages/contracts-bedrock/contracts/libraries/Types.sol#L76-L83)
  -- [`OutputRootProof` type](https://github.com/ethereum-optimism/optimism/blob/6c6d142d7bb95faa11066aab5d8aed7187abfe38/packages/contracts-bedrock/contracts/libraries/Types.sol#L33-L38)
  +- [`WithdrawalTransaction` type]
  +- [`OutputRootProof` type]
  ```js
  interface OptimismPortal {
  @@ -217,3 +217,6 @@ contracts if desired.
  | `FINALIZATION_PERIOD` | `604_800` | seconds |
  This `FINALIZATION_PERIOD` value is equivalent to 7 days.
  +
  +[`WithdrawalTransaction` type]: https://github.com/ethereum-optimism/optimism/blob/6c6d142d7bb95faa11066aab5d8aed7187abfe38/packages/contracts-bedrock/contracts/libraries/Types.sol#L76-L83
  +[`OutputRootProof` type]: https://github.com/ethereum-optimism/optimism/blob/6c6d142d7bb95faa11066aab5d8aed7187abfe38/packages/contracts-bedrock/contracts/libraries/Types.sol#L33-L38
  