AG-2914 DOCS - Add docs around react hooks with editors.

src-examples/simpleReduxHooksExample/PriceEditor.jsx

@@ -0,0 +1,18 @@
+import React, {useEffect, forwardRef, useImperativeHandle, useRef} from "react";
+
+export default forwardRef((props, ref) => {
+    const inputRef = useRef();
+    useImperativeHandle(ref, () => {
+        return {
+            getValue: () => {
+                return inputRef.current.value;
+            }
+        };
+    });
+
+    useEffect(() => {
+        // https://github.com/facebook/react/issues/7835#issuecomment-395504863
+        setTimeout(() => inputRef.current.focus(), 10)
+    }, []);
+    return <input type="text" ref={inputRef} defaultValue={props.value}/>;
+})