how-to/deploy: fix and optimize description, format in TiUP (#2654)
how-to/deploy: fix and optimize description, format in TiUP (#2654)

* how-to/deploy: fix wording in tiup

* how-to: optimize wording

* Update tiup.md

Co-authored-by: yikeke <9eab6a9266c1a471ca02f5c04fa0a3b857620cf9@pingcap.com>
Co-authored-by: Keke Yi <4b13e11d5beb5669a80650bc9e0535372af5b679@users.noreply.github.com>
pingcap/docs-cn,pingcap/docs-cn