update original

Author: funkill

rust-by-example/src/flow_control/for.md

@@ -46,6 +46,19 @@ fn main() {
 }
 ```
 
+Just remember that even though you can compile the code when a>b, the loop gets 
+never executed.
+```rust,editable
+for i in 10..1{
+println!("fizzbuzz");
+}
+```
+If you want to count down, you need to use .rev() instead
+```rust,editable
+for i in (1..10).rev(){
+println!("fizzbuzz");
+}
+```
 ## for and iterators
 
 The `for in` construct is able to interact with an `Iterator` in several ways.

rust-by-example/src/variable_bindings.md

@@ -16,8 +16,8 @@ fn main() {
     // copy `an_integer` into `copied_integer`
     let copied_integer = an_integer;
 
-    println!("An integer: {:?}", copied_integer);
-    println!("A boolean: {:?}", a_boolean);
+    println!("An integer: {}", copied_integer);
+    println!("A boolean: {}", a_boolean);
     println!("Meet the unit value: {:?}", unit);
 
     // The compiler warns about unused variable bindings; these warnings can