Pleas add `-n` arg to `search` subcommand, equivalent to `nhits` query param

[Boscop]

$ tantivy search -i wikipedia-index -q "barack obama" -n 20
error: unexpected argument '-n' found

$ tantivy search --help                                                                                     
Search an index.

Usage: tantivy search [OPTIONS] --index <directory> --query <query>

Options:
  -i, --index <directory>  Tantivy index directory filepath
  -q, --query <query>      Query
  -a, --agg <agg>          Aggregation request as JSON
  -h, --help               Print help

Pleas add -n arg to search subcommand, equivalent to nhits query param 🙏 (http://localhost:3000/api/?q=barack+obama&nhits=20)

(Because by default, the search subcommand seems to return all matching docs which are way too many.)