Change Monty-Hall to Monty Hall in README.md

Author: antaljanosbenjamin

monty_hall/README.md

@@ -1,4 +1,4 @@
-# Monty-Hall simulator
+# Monty Hall simulator
 This program is a simple simulation of the [Monty Hall problem](https://en.wikipedia.org/wiki/Monty_Hall_problem). 
 
 ## Usage
@@ -9,4 +9,4 @@ where the meaning of the parameters are the following:
 - `switch_choice`: either `t` (true) or `f` (false) to determine whether the user switches his choice or not.
 
 ## Motivation
-This is my first Rust application which is more complex than the [Guessing game](https://doc.rust-lang.org/book/ch02-00-guessing-game-tutorial.html) in the Rust tutorial. I just heard about the Monty-Hall problem and I really would like to try out, so I created this little program to simulate millions of games in a few seconds.
+This is my first Rust application which is more complex than the [Guessing game](https://doc.rust-lang.org/book/ch02-00-guessing-game-tutorial.html) in the Rust tutorial. I just heard about the Monty Hall problem and I really would like to try out, so I created this little program to simulate millions of games in a few seconds.