message: Fixed feature comment with incorrect description
  Looks like a copy paste error, the description and link looked correct and linked to the correct location, just the top of the comment was not.
diff: @@ -168,10 +168,10 @@ impl Features {
  self
  }
  - /// Configures whether the WebAssembly tail-call proposal will
  + /// Configures whether the WebAssembly module linking proposal will
  /// be enabled.
  ///
  - /// The [WebAssembly tail-call proposal][proposal] is not
  + /// The [WebAssembly module linking proposal][proposal] is not
  /// currently fully standardized and is undergoing development.
  /// Support for this feature can be enabled through this method for
  /// appropriate WebAssembly modules.
  