Update score messages

Make the score message give the amount of questions you got right  out of the total questions.

Allows for a unlimited amount of questions and some more.

I added a lot of new features (and the code is a LOT shorter). The main feature is that it allows for a unlimited amount of questions. Also, if the amount of questions is equal to 0, it prints a error message and terminates the program. And, if the score is equal to one, the text that it prints uses the correct grammar.

Now it shuffles the user's questions

Now, the code is able to shuffle the user's questions so they aren't answering the questions in the same order that they input it in. Thank you @bcorwin for the idea!

Now has support for 21 questions

Now the Study Guide Creator is able to support the creation of 21 questions.

Version 2.0 of Study Guide Creator - COMPLETE VERSION

This is the first completed version of the Study Guide Creator! Run this code in a IDE or complier and create your own study guide with the output to study for a test. So far, it only supports 20 questions. (I'll add more later). It will ask you for the amount of questions you would like to have, what the questions should be, and what the answers should be. Then, it will let you answer them. If you get the question right, it will tell you and give you a point. If you get it wrong, it will tell you and give you the correct answer. Then, at the end, it will give you your score. (The score is how many questions you got correct.)