docs: example with CSS modules and pure CSS (#983)

Author: evilebottnawi

README.md

@@ -873,7 +873,7 @@ module.exports = {
         use: ['style-loader', 'css-loader'],
       },
       {
-        test: /\.(png|jpe?g|gif|svg|eot|ttf|woff|woff2)$/,
+        test: /\.(png|jpe?g|gif|svg|eot|ttf|woff|woff2)$/i,
         loader: 'url-loader',
         options: {
           limit: 8192,
@@ -892,6 +892,47 @@ For production builds it's recommended to extract the CSS from your bundle being
 
 - As an alternative, if seeking better development performance and css outputs that mimic production. [extract-css-chunks-webpack-plugin](https://github.com/faceyspacey/extract-css-chunks-webpack-plugin) offers a hot module reload friendly, extended version of mini-css-extract-plugin. HMR real CSS files in dev, works like mini-css in non-dev
 
+### CSS modules and pure CSS
+
+When you have pure CSS (without CSS modules) and CSS modules in project you can use this setup:
+
+**webpack.config.js**
+
+```js
+module.exports = {
+  module: {
+    rules: [
+      {
+        // For pure CSS (without CSS modules)
+        test: /\.css$/i,
+        exclude: /\.module\.css$/i,
+        use: ['style-loader', 'css-loader'],
+      },
+      {
+        // For CSS modules
+        test: /\.module\.css$/i,
+        use: [
+          'style-loader',
+          {
+            loader: 'css-loader',
+            options: {
+              modules: true,
+            },
+          },
+        ],
+      },
+      {
+        test: /\.(png|jpe?g|gif|svg|eot|ttf|woff|woff2)$/i,
+        loader: 'url-loader',
+        options: {
+          limit: 8192,
+        },
+      },
+    ],
+  },
+};
+```
+
 ## Contributing
 
 Please take a moment to read our contributing guidelines if you haven't yet done so.