[Follow-up] Add The File Config/scenarios/monte_carlo/example. (PR #4580)

Follow (third-person singular simple present follows, present participle following, simple past and past participle followed) (ambitransitive) to go after; Follow up (third-person singular simple present follows up, present participle following up, simple past and past participle followed up) to take further actions remaining after an event; To retrieve follow-up documents with higher reliability by preventing those documents which cannot be follow-up documents due to time factor from being judged to be the follow-up documents.

People follow leaders and they will never follow us.