diff --git a/rust-book/chapter-1/guessing_game/src/main.rs b/rust-book/chapter-1/guessing_game/src/main.rs
index eca8308..4fc83aa 100644
--- a/rust-book/chapter-1/guessing_game/src/main.rs
+++ b/rust-book/chapter-1/guessing_game/src/main.rs
@@ -7,9 +7,13 @@ fn main() {
 
     let mut guess = String::new();
 
-    io::stdin().read_line(&mut guess)
+    io::stdin()
+        .read_line(&mut guess)
         .expect("Failed to read line");
 
-
     println!("You guessed: {}", guess);
 }
+
+fn test(arg: String) -> String {
+    unimplemented!()
+}
diff --git a/rust-book/chapter-1/hello_world/main b/rust-book/chapter-1/hello_world/main
deleted file mode 100755
index e1a8033..0000000
Binary files a/rust-book/chapter-1/hello_world/main and /dev/null differ
diff --git a/rust-book/chapter-1/hello_world/main.rs b/rust-book/chapter-1/hello_world/main.rs
deleted file mode 100644
index e7a11a9..0000000
--- a/rust-book/chapter-1/hello_world/main.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-fn main() {
-    println!("Hello, world!");
-}
diff --git a/rust-book/todo.txt b/rust-book/todo.txt
index 40b5f1b..3bd760d 100644
--- a/rust-book/todo.txt
+++ b/rust-book/todo.txt
@@ -9,3 +9,7 @@ To do:
 
 -rustup install nightly-x86_64-apple-darwin
 -rustup component add rls --toolchain nightly-x86_64-apple-darwin
+
+
+
+https://www.reddit.com/r/rust/comments/a40www/sublime_text_3_question/