Add use-simple-undo (rehooks#50)

Author: sandiiarov

README.md

@@ -76,6 +76,7 @@
 - [`the-platform`](https://github.com/palmerhq/the-platform) Browser API's turned into React Hooks and Suspense-friendly React elements for common situations.
 - [`use-events`](https://github.com/sandiiarov/use-events) A set of React Hooks to handle mouse events.
 - [`use-immer`](https://github.com/mweststrate/use-immer) A hook to use [immer](https://github.com/mweststrate/immer) to manipulate state.
+- [`use-simple-undo`](https://github.com/sandiiarov/use-simple-undo) Simple implementation of undo/redo functionality.
 - [`use-substate`](https://github.com/philipp-spiess/use-substate) React hook for subscribing to your single app state (works with your current [Redux](https://redux.js.org/) app).
 - [`use-undo`](https://github.com/xxhomey19/use-undo) React hook to implement Undo and Redo functionality.
 - [`usePosition`](https://github.com/tranbathanhtung/usePosition) React hook to get position top left of an element.