* Replace markdownlint with mdformat to avoid installing ruby

* fix circleci

* [Doc] Add scheduler user doc.

* reslove comments

* add chinese doc

* add update en doc

* resolve comments

* resolve comments

* update parameter scheduler

* resolve comments

* tmp remove en doc

* resolve comments

* resolve comments

* resolve comments

Co-authored-by: Kai Chen <chenkaidev@gmail.com>