Inside your Computer class, define a method called create with a single parameter, filename.

Inside create, declare a variable called time and set it equal to the current time (using Time.now).

Next, inside create, add a new key/value pair to the @files hash. Use the filename key to store the value time.

For the final step in create, please puts a message telling the user that a new file was created. Feel free to put in any information you like; the one we used in exercise 1 printed the filename, the username, and the time.