Fixed update children problem with xml

pkg/yqlib/doc/usage/xml.md

@@ -129,21 +129,20 @@ zoo:
 ```
 
 ## Parse xml: force all as an array
-Because of the way yq works, when updating everything you need to update the children before the parents. By default `..` will match parents first, so we reverse that before updating.
-
 Given a sample.xml file of:
 ```xml
 <zoo><thing><frog>boing</frog></thing></zoo>
 ```
 then
 ```bash
-yq -oy '([..] | reverse | .[]) |= [] + .' sample.xml
+yq -oy '.. |= [] + .' sample.xml
 ```
 will output
 ```yaml
-zoo:
-  thing:
-    frog: boing
+- zoo:
+    - thing:
+        - frog:
+            - boing
 ```
 
 ## Parse xml: attributes