tiup: add -p flag on deploy incluster.md (#3029)
tiup: add -p flag on deploy incluster.md (#3029)

* Update cluster.md

* Update reference/tools/tiup/cluster.md

Co-authored-by: Keke Yi <4b13e11d5beb5669a80650bc9e0535372af5b679@users.noreply.github.com>

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