Submit Guessing Game Assignment

Complete "Make your own Guessing Game" assignment by creating a repository. Contains a readme file and Javascript game.
I could move the prompt to the beginning of the function so it asks for the guess every time it's called. If the answer is correct, the function shouldn't be called again and the user won't be prompted to enter a new answer.

I could also have the conditionals return a value (outputMessage) and call the alert function after the conditionals.