fix function name

README.md

@@ -10654,7 +10654,7 @@ note: the function `prints_one_thing` is defined here
 4  |     fn prints_one_thing<T: Display>(input: T) {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 ```
-It's easy to understand that function `print_one_thing` is private. It also shows us with `src\main.rs:4:5` where to find the function. This is helpful because you can write `mod`s not just in one file, but over a lot of files as well.
+It's easy to understand that function `prints_one_thing` is private. It also shows us with `src\main.rs:4:5` where to find the function. This is helpful because you can write `mod`s not just in one file, but over a lot of files as well.
 
 Now we just write `pub fn` instead of `fn` and everything works.