message: doc: add stubs for output files
diff: @@ -22,3 +22,15 @@ Yes, you can specify your own tree, reference sequence, and QC settings in the a
  ## Is Nextclade available for other pathogens and microorganisms, too?
  Nextclade works for other viruses, but you have to specify your own reference sequences, trees, and annotations. Only SARS-CoV-2 data is currently provided as a default. We plan to support other pathogens in the future.
  +
  +
  +# Output files
  +
  +## CSV/TSV outputs
  +
  +
  +## JSON output
  +
  +
  +## Auspice tree output
  +
  