fix(arc1): Fix some words in the comment
// arc1.rs
// Make this code compile by filling in a value for `shared_numbers` where the
-// TODO comment is and creating an initial binding for `child_numbers`
+// TODO comment is and create an initial binding for `child_numbers`
// somewhere. Try not to create any copies of the `numbers` Vec!
-// Execute `rustlings help arc1` for hints :)
+// Execute `rustlings hint arc1` for hints :)
// I AM NOT DONE
