chore(docs): Update redux to add section about RTK

Closes #1323

Thank you for your contribution, @shoaib2527!

docs/plugins/redux.md

@@ -58,7 +58,22 @@ ReactotronConfig, you'll need to add `reactotron-redux` as plugin
 + export default reactotron
 ```
 
-Then, add enhancer from `Reactotron.createEnhancer()` to `createStore` as last parameter
+## Using Redux Toolkit (RTK)
+
+If you're using RTK, add the enhancer from `Reactotron.createEnhancer()` to `enhancers` in `configureStore`
+
+```diff
+import {configureStore} from '@reduxjs/toolkit';
++ import Reactotron from './ReactotronConfig'
+const store = configureStore({
+   ... (reducers, middlewares etc),
++  enhancers: __DEV__ ? [Reactotron.createEnhancer!()] : [],
+});
+```
+
+## Using Classic Redux
+
+Add enhancer from `Reactotron.createEnhancer()` to `createStore` as last parameter
 
 ```diff
 import { createStore } from 'redux'
@@ -71,7 +86,7 @@ import { createStore } from 'redux'
 
 Note: passing enhancer as last argument requires redux@>=3.1.0
 
-## If you have middleware
+### If you have middleware
 
 ```diff
 import { createStore } from 'redux'