feat: update README

Author: gabrielkuettel

README.md

@@ -18,7 +18,7 @@ Preview a basic implementation in [Storybook](https://txnlab.github.io/use-walle
 
 ## Quick Start
 
-⚠️ If you're using Webpack 5 (most newer React projects), you will need to install polyfills. Follow [these directions](#webpack-5).
+⚠️ If you're using `create-react-app` and `webpack 5` (most newer React projects), you will need to install polyfills. Follow [these directions](#webpack-5).
 
 ### Yarn
 
@@ -362,6 +362,8 @@ Note that some of the providers do not require static imports to be provided. Th
 
 ## Webpack 5
 
+Note: Frameworks like `next.js` already include polyfills. This step is required if you're using `create-react-app` with `webpack 5`.
+
 1. Install `react-app-rewired` and the missing polyfills.
 
     ```bash