added examples for transforms. [skip ci] (#5393)

packages/babel-plugin-transform-es2015-destructuring/README.md

@@ -2,6 +2,24 @@
 
 > Compile ES2015 destructuring to ES5
 
+## Examples
+
+**In**
+
+```javascript
+let arr = [1,2,3];
+let {x, y, z} = arr;
+```
+
+**Out**
+
+```javascript
+var arr = [1, 2, 3];
+var x = arr.x,
+    y = arr.y,
+    z = arr.z;
+```
+
 ## Installation
 
 ```sh