message: Fix some doc comments done as plain comments
diff: @@ -96,8 +96,8 @@ pub trait BlockService {
  to: &Self::BlockId,
  ) -> Self::PullBlocksFuture;
  - // Stream blocks from either of the given starting points
  - // to the server's tip.
  + /// Stream blocks from either of the given starting points
  + /// to the server's tip.
  fn pull_blocks_to_tip(&mut self, from: &[Self::BlockId]) -> Self::PullBlocksFuture;
  /// Get block headers, walking forward in a range between any of the given
  @@ -108,8 +108,8 @@ pub trait BlockService {
  to: &Self::BlockId,
  ) -> Self::PullHeadersFuture;
  - // Stream block headers from either of the given starting points
  - // to the server's tip.
  + /// Stream block headers from either of the given starting points
  + /// to the server's tip.
  fn pull_headers_to_tip(&mut self, from: &[Self::BlockId]) -> Self::PullHeadersFuture;
  // Establishes a bidirectional subscription for announcing blocks,
  