Specs:
Behavior: Counts from one to a given number Input: 2 Output: an array of [1, 2]
Behavior: Replaces numbers divisible by three with "ping" Input:6 Output: an array of [1, 2, ping, 4, 5, ping]
Behavior: Replaces numbers divisible by 5 with "pong" Input: 5 Output: an array of [1, 2, ping, 4, pong]
Behavior: Replaces numbers divisible by both 3 and 5 with "ping-pong" Input: 15 Output: [1, 2, ping, 4, pong, ping, 7, 8, ping, pong, 11, ping, 13, 14, ping-pong]