actually there are link *variables* at the bottom of the document
which makes it easier to read i think and the link to the `#nufmt`
channel is wrong:
- https://discord.com/channels/601130461678272522/1117921521520873623 is
  the new `#nufmt` channel
- https://discord.com/channels/601130461678272522/1087437882396004442
  was the link of the closed `#nufmt` threads under the `#general`
  channel

- break long lines
- remove the report commands as it's supposed to be used by the `check pr`
  command of the Nushell toolkit
- remove the `--dataframe` options as we do not have any feature here
  and especially not the *dataframe* one
- default to always using `--workspace` or `--all`
- remove the inline doc to `cargo clippy`: it can be accessed with
  `cargo help clippy`
- put the same *Clippy* rules as in the CI and on multiple lines