19.2 Vectors Error in Code Example

[sebadoh]

https://doc.rust-lang.org/1.29.2/rust-by-example/std/vec.html

Code contain an error in the following places:

Line number 3: let collected_iterator: Vec = (0..10).collect();
Should be: let mut collected_iterator: Vec = (0..10).collect();
Or else Line number16 can't borrow mutably

[marioidival]

@sebadoh please, create a PR fixing this :)

[sebadoh]

Done (Hopefully) :-)

[marioidival]

closes #1178