* docs: add markdownlint rules for mo docs

Signed-off-by: Aylei <rayingecho@gmail.com>

* docs: add lint docs github action

Signed-off-by: Aylei <rayingecho@gmail.com>

* docs: better check name

Signed-off-by: Aylei <rayingecho@gmail.com>

* docs: fix docs automatically using markdown-lint

Signed-off-by: Aylei <rayingecho@gmail.com>

* fix markdown lint rule file path

Signed-off-by: Aylei <rayingecho@gmail.com>

* docs: fix link of cube auto-rebalance

Signed-off-by: Aylei <rayingecho@gmail.com>