Problem 2

Create a function that takes an array of names and returns an array where only the first letter of each name is capitalized.

capitalize(["mavis", "senaida", "letty"]) // ["Mavis", "Senaida", "Letty"]

capitalize(["samuel", "MABELLE", "letitia", "meridith"]) // ["Samuel", "Mabelle", "Letitia", "Meridith"]

capitalize(["Slyvia", "Kristal", "Sharilyn", "Calista"]) // ["Slyvia", "Kristal", "Sharilyn", "Calista"]