Align section references with Rust Book section names

Author: aeft

rustlings-macros/info.toml

@@ -265,10 +265,10 @@ for `a.len() >= 100`?"""
 name = "primitive_types4"
 dir = "04_primitive_types"
 hint = """
-Take a look at the 'Understanding Ownership -> Slices -> Other Slices' section
-of the book: https://doc.rust-lang.org/book/ch04-03-slices.html and use the
-starting and ending (plus one) indices of the items in the array that you want
-to end up in the slice.
+Take a look at the 'Understanding Ownership -> The Slice Type -> Other Slices'
+section of the book: https://doc.rust-lang.org/book/ch04-03-slices.html and use
+the starting and ending (plus one) indices of the items in the array that you
+want to end up in the slice.
 
 If you're curious why the first argument of `assert_eq!` does not have an
 ampersand for a reference since the second argument is a reference, take a look