Suggest mut_iter and move_iter when iterating over vectors, as well as iter.

Doc-FAQ-Cheatsheet.md

@@ -71,11 +71,13 @@ Use the [`iter`](http://static.rust-lang.org/doc/master/std/vec/trait.ImmutableV
 
 ```rust
 let values: ~[int] = ~[1, 2, 3, 4, 5];
-for value in values.iter() {
+for value in values.iter() {  // value: &int
     println(value.to_str());
 }
 ```
 
+(See also [`mut_iter`](http://static.rust-lang.org/doc/master/std/vec/trait.MutableVector.html#tymethod.mut_iter) which yields `&mut int` and [`move_iter`](http://static.rust-lang.org/doc/master/std/vec/trait.OwnedVector.html#tymethod.move_iter) which yields `int` while consuming the `values` vector.)
+
 # Contributing to this page
 
 For small examples, have full type annotations, as much as is reasonable, to keep it clear what, exactly, everything is doing. Try to link to the API docs, as well.