FizzBuzz

Simple elixir app for learning purposes. Given a file with a list of numbers, returns a modified list replacing the numbers for:

• :fizz when multiple of 3
• :buzz when multiple of 5
• :fizz_buzz when multiple of both 3 and 5

Example of use (IEx)

iex(1)> FizzBuzz.build_list("numbers.txt")
{:ok, [1, 2, "Fizz", 4, "Buzz", :error, "Buzz", "FizzBuzz", "Buzz"]}
iex(2)>