Leonhard Kipp 48f535f02e
Display aliases and custom commands in which; fix #2810 (#2834)
* Display aliases and custom commands in which; Fix #2810

Example output of nu after the commit is applied:

```shell
/home/leo/repos/nushell(feature/which_inspect_alias)> def docker-ps [] { docker ps --format '{{json .}}' | from json -o }
/home/leo/repos/nushell(feature/which_inspect_alias)> which docker-ps
───┬───────────┬────────────────────────┬─────────
 # │    arg    │          path          │ builtin
───┼───────────┼────────────────────────┼─────────
 0 │ docker-ps │ nushell custom command │ No
───┴───────────┴────────────────────────┴─────────
/home/leo/repos/nushell(feature/which_inspect_alias)> alias d = gid pd
/home/leo/repos/nushell(feature/which_inspect_alias)> which d
───┬─────┬───────────────┬─────────
 # │ arg │     path      │ builtin
───┼─────┼───────────────┼─────────
 0 │ d   │ nushell alias │ No
───┴─────┴───────────────┴─────────
```

* Update documentation
2021-01-02 06:40:44 +13:00
..
2020-12-28 14:52:28 -06:00
2021-01-01 15:13:59 +13:00
2021-01-01 15:13:59 +13:00
2021-01-01 15:13:59 +13:00