The purpose of putting pronouns in your bio is that most trans people must do this to avoid misgendering, and if only trans people have their pronouns on display it makes it really easy to single us out whether we want to be open about it or not, which leads to harassment.
If you're cis, put your pronouns in your bio. It helps trans people stay safe online.
Not "cis man/woman" or "male/female" or "mr/ms/mrs". The pronouns. Type out the pronouns. Whatever else you add is fine, but please just take 3 seconds, type the pronouns, hit save.
If you don't, trans people have no way of knowing whether you're a safe cis person or not, and I will generally assume you are not since you haven't put forth the minimal possible effort to help protect us.