Reword UsageWithReact docs wording (#3132)

"that tells how" is a bit awkward to read. It has been reworded to "that describes how" which should be equally accessible wording but flows a bit easier.

docs/basics/UsageWithReact.md

@@ -229,7 +229,7 @@ export default Footer
 
 Now it's time to hook up those presentational components to Redux by creating some containers. Technically, a container component is just a React component that uses [`store.subscribe()`](../api/Store.md#subscribe) to read a part of the Redux state tree and supply props to a presentational component it renders. You could write a container component by hand, but we suggest instead generating container components with the React Redux library's [`connect()`](https://github.com/reduxjs/react-redux/blob/master/docs/api.md#connectmapstatetoprops-mapdispatchtoprops-mergeprops-options) function, which provides many useful optimizations to prevent unnecessary re-renders. (One result of this is that you shouldn't have to worry about the [React performance suggestion](https://facebook.github.io/react/docs/advanced-performance.html) of implementing `shouldComponentUpdate` yourself.)
 
-To use `connect()`, you need to define a special function called `mapStateToProps` that tells how to transform the current Redux store state into the props you want to pass to a presentational component you are wrapping. For example, `VisibleTodoList` needs to calculate `todos` to pass to the `TodoList`, so we define a function that filters the `state.todos` according to the `state.visibilityFilter`, and use it in its `mapStateToProps`:
+To use `connect()`, you need to define a special function called `mapStateToProps` that describes how to transform the current Redux store state into the props you want to pass to a presentational component you are wrapping. For example, `VisibleTodoList` needs to calculate `todos` to pass to the `TodoList`, so we define a function that filters the `state.todos` according to the `state.visibilityFilter`, and use it in its `mapStateToProps`:
 
 ```js
 const getVisibleTodos = (todos, filter) => {