docs: update readme

Author: awran5

CHANGELOG.md

@@ -28,6 +28,7 @@ Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 - **BREAKING CHANGES:** change **default** import to **name** import
 - **BREAKING CHANGES:** rename `height` prop to `chatboxHeight`
 - **BREAKING CHANGES:** rename `styles` prop to `style`
+- **BREAKING CHANGES:** `notificationDelay` now in seconds instead of millisecond
 - add: new prop `onClick` Callback function fires on click
 - add: new prop `onSubmit` Callback function fires on submit with event and form input value passed
 - add: new prop `onClose` Callback function fires on close

README.md

@@ -29,6 +29,7 @@ yarn add react-floating-whatsapp
 - **BREAKING CHANGES:** change **default** import to **name** import
 - **BREAKING CHANGES:** rename `height` prop to `chatboxHeight`
 - **BREAKING CHANGES:** rename `styles` prop to `style`
+- **BREAKING CHANGES:** `notificationDelay` now in seconds instead of millisecond
 
 ## Usage