Added rust to practice

rust/guessing_game/src/main.rs

@@ -0,0 +1,15 @@
+use std::io;
+
+fn main() {
+	println!("Guess a number!");
+
+	println!("Please input your guess.");
+
+	let mut guess = String::new();
+
+	io::stdin().read_line(&mut guess)
+		.expect("Failed to read line");
+	
+	println!("You guessed: {}", guess);
+
+}