Address feedback

exercises/error_handling/errorsn.rs

@@ -13,7 +13,7 @@
 // type goes where the question marks are, and how do we return
 // that type from the body of read_and_validate?
 //
-// Execute `rustlings hint errors4` for hints :)
+// Execute `rustlings hint errorsn` for hints :)
 
 // I AM NOT DONE
 

exercises/error_handling/result1.rs

@@ -1,5 +1,5 @@
 // result1.rs
-// Make this test pass! Execute `rustlings hint option2` for hints :)
+// Make this test pass! Execute `rustlings hint result1` for hints :)
 
 // I AM NOT DONE
 

exercises/functions/functions1.rs

@@ -1,5 +1,5 @@
 // functions1.rs
-// Make me compile! Execute `rustlings hint function1` for hints :)
+// Make me compile! Execute `rustlings hint functions1` for hints :)
 
 // I AM NOT DONE