docs: update readme

README.md

@@ -2,6 +2,14 @@
 
 > Straightforward object picker and walkers
 
+### Why?
+
+I have re-written this utility at least 3 times now and each time I end up with
+something where either an array or an object is a after thought. A lot of times
+it's okay to use the Array methods with the picker but if I can simplify the
+most common case of picking from an array inside the object then, I might as
+well do this.
+
 ### Usage
 
 ```sh
@@ -13,3 +21,9 @@ import { pick } from '@dumbjs/pick'
 import { get } from '@dumbjs/pick/get'
 import { set } from '@dumbjs/pick/set'
 ```
+
+### Examples
+
+- [`pick`](/tests/pick.test.ts)
+- [`get`](/tests/get.test.ts)
+- [`set`](/tests/set.test.ts)