Tag rename? charo -> kirima_sharo

There are a handful of posts tagged charo right now for the character Kirima Sharo (桐間 紗路) from gochuumon_wa_usagi_desuka? (Is the Order a Rabbit? , ご注文はうさぎですか?). I don't see any reason to use charo, so they should probably be all changed to kirima_sharo instead.