message: docs: add spandoc to related crates
diff: @@ -374,9 +374,11 @@ are not maintained by the `tokio` project. These include:
  - [`tracing-bunyan-formatter`] provides a layer implementation that reports events and spans in [bunyan] format, enriched with timing information.
  - [`color-spantrace`] provides a formatter for rendering span traces in the
  style of `color-backtrace`
  -- [`color-eyre`] provides a customized version of `eyre::Report` for capturing
  - span traces and backtraces with new errors and pretty printing them in error
  - reports.
  +- [`color-eyre`] provides customized panic and eyre report handlers for
  + `eyre::Report` for capturing span traces and backtraces with new errors and
  + pretty printing them.
  +- [`spandoc`] provides a proc macro for constructing spans from doc comments
  + _inside_ of functions.
  (if you're the maintainer of a `tracing` ecosystem crate not in this list,
  please let us know!)
  @@ -391,8 +393,9 @@ please let us know!)
  [coz]: https://github.com/plasma-umass/coz
  [`tracing-bunyan-formatter`]: https://crates.io/crates/tracing-bunyan-formatter
  [bunyan]: https://github.com/trentm/node-bunyan
  -[`color-spantrace`]: https://github.com/yaahc/color-spantrace
  -[`color-eyre`]: https://github.com/yaahc/color-eyre
  +[`color-spantrace`]: https://docs.rs/color-spantrace
  +[`color-eyre`]: https://docs.rs/color-eyre
  +[`spandoc`]: https://docs.rs/spandoc
  **Note:** that some of the ecosystem crates are currently unreleased and
  undergoing active development. They may be less stable than `tracing` and
  