Merge pull request #73 from rongyi/patch-1

Update ch12-closures.md

c-cpp-book/src/ch12-closures.md

@@ -64,7 +64,7 @@ fn main() {
 </details>
 
 # Rust iterators
-- Iterators are one of the most powerful features of Rust. They enable very elegant methods for performing operations on collections, including filtering (```filter()```), transformation (```map()```), filter and map (```filter_and_map()```), searching (```find()```) and much more
+- Iterators are one of the most powerful features of Rust. They enable very elegant methods for performing operations on collections, including filtering (```filter()```), transformation (```map()```), filter and map (```filter_map()```), searching (```find()```) and much more
 - In the example below, the ```|&x| *x >= 42``` is a closure that performs the same comparison. The ```|x| println!("{x}")``` is another closure
 ```rust
 fn main() {