docs: fix typos and improve clarity in README.md (webpack-contrib#703)

ersachin3112 · web-flow · commit 36749e875381 · 2025-05-31T19:37:51.000+05:30
diff --git a/README.md b/README.md
@@ -36,7 +36,7 @@ PostCSS chat: [![chat-postcss][chat-postcss]][chat-postcss-url]
 
 # postcss-loader
 
-Loader to process CSS with [`PostCSS`](https://github.com/postcss/postcss).
+A loader to process CSS using [`PostCSS`](https://github.com/postcss/postcss).
 
 ## Getting Started
 
@@ -60,7 +60,7 @@ or
 pnpm add -D postcss-loader postcss
 ```
 
-Then add the plugin to your `webpack` config. For example:
+Then add the loader to your `webpack` configuration. For example:
 
 > In the following configuration the plugin [`postcss-preset-env`](https://github.com/csstools/postcss-preset-env) is used, which is not installed by default.
 
@@ -137,7 +137,7 @@ module.exports = {
 };
 ```
 
-And run `webpack` via your preferred method.
+Finally, run `webpack` using the method you normally use (e.g., via CLI or an npm script).
 
 ## Options
 
@@ -156,7 +156,7 @@ type execute = boolean;
 
 Default: `undefined`
 
-Enable PostCSS Parser support in `CSS-in-JS`.
+Enable PostCSS parser support for `CSS-in-JS`.
 If you use JS styles the [`postcss-js`](https://github.com/postcss/postcss-js) parser, add the `execute` option.
 
 **webpack.config.js**
@@ -215,17 +215,16 @@ export type PostCSSLoaderOptions =
 
 Default: `undefined`
 
-Allows to set [`PostCSS options`](https://postcss.org/api/#processoptions) and plugins.
+Allows you to set [`PostCSS options`](https://postcss.org/api/#processoptions) and plugins.
 
 All `PostCSS` options are supported.
 There is the special `config` option for config files. How it works and how it can be configured is described below.
 
 We recommend do not specify `from`, `to` and `map` options, because this can lead to wrong path in source maps.
-If you need source maps please use the [`sourcemap`](#sourcemap) option.
+If you need source maps please use the [`sourcemap`](#sourcemap) option instead.
 
-For large projects, to optimize performance of the loader, it is better to provide `postcssOptions` in loader
-config and specify `config: false`. This approach removes the need to lookup and load external config files multiple
-times during compilation.
+For large projects, to optimize performance of the loader, it is better to provide `postcssOptions` in loader config and specify `config: false`.
+This approach removes the need to lookup and load external config files multiple times during compilation.
 
 #### `object`
 
@@ -412,17 +411,17 @@ type config = boolean | string;
 
 Default: `true`
 
-Allows to set options using config files.
+Allows you to set options using config files.
 Options specified in the config file are combined with options passed to the loader, the loader options overwrite options from config.
 
 ##### Config Files
 
 The loader will search up the directory tree for configuration in the following places:
 
-- a `postcss` property in `package.json`
-- a `.postcssrc` file in JSON or YAML format
-- a `.postcssrc.json`, `.postcssrc.yaml`, `.postcssrc.yml`, `.postcssrc.js`, or `.postcssrc.cjs` file
-- a `postcss.config.js` or `postcss.config.cjs` CommonJS module exporting an object (**recommended**)
+- A `postcss` property in `package.json`
+- A `.postcssrc` file in JSON or YAML format
+- A `.postcssrc.json`, `.postcssrc.yaml`, `.postcssrc.yml`, `.postcssrc.js`, or `.postcssrc.cjs` file
+- A `postcss.config.js` or `postcss.config.cjs` CommonJS module exporting an object (**recommended**)
 
 ##### Examples of Config Files
 
@@ -517,7 +516,7 @@ Config lookup starts from `path.dirname(file)` and walks the file tree upwards u
 After setting up your `postcss.config.js`, add `postcss-loader` to your `webpack.config.js`.
 You can use it standalone or in conjunction with `css-loader` (recommended).
 
-Use it **before** `css-loader` and `style-loader`, but **after** other preprocessor loaders like e.g `sass|less|stylus-loader`, if you use any (since [webpack loaders evaluate right to left/bottom to top](https://webpack.js.org/concepts/loaders/#configuration)).
+Use `postcss-loader` **before** `css-loader` and `style-loader`, but **after** other preprocessor loaders like e.g `sass|less|stylus-loader`, if you use any (since [webpack loaders evaluate right to left/bottom to top](https://webpack.js.org/concepts/loaders/#configuration)).
 
 **webpack.config.js** (**recommended**)
 
@@ -719,6 +718,8 @@ module.exports = {
 
 ### SugarSS
 
+`SugarSS` is a whitespace-based syntax for PostCSS.
+
 You'll need to install `sugarss`:
 
 ```console
@@ -764,7 +765,7 @@ You'll need to install `autoprefixer`:
 npm install --save-dev autoprefixer
 ```
 
-Add vendor prefixes to CSS rules using [`autoprefixer`](https://github.com/postcss/autoprefixer).
+Automatically add vendor prefixes to CSS rules using [`autoprefixer`](https://github.com/postcss/autoprefixer).
 
 **webpack.config.js**
 
@@ -788,7 +789,7 @@ module.exports = {
                   [
                     "autoprefixer",
                     {
-                      // Options
+                      // Autoprefixer options (optional)
                     },
                   ],
                 ],
@@ -852,9 +853,9 @@ module.exports = {
 
 ### CSS Modules
 
-What is `CSS Modules`? Please [read](https://github.com/webpack-contrib/css-loader#modules).
+> What are `CSS Modules`? Please [read here](https://github.com/webpack-contrib/css-loader#modules).
 
-No additional options required on the `postcss-loader` side.
+No additional options required on the `postcss-loader` side to support CSS Modules.
 To make them work properly, either add the `css-loader`’s `importLoaders` option.
 
 **webpack.config.js**
@@ -884,6 +885,8 @@ module.exports = {
 
 ### CSS-in-JS and [`postcss-js`](https://github.com/postcss/postcss-js)
 
+To process styles written in JavaScript, you can use `postcss-js` as the parser.
+
 You'll need to install `postcss-js`:
 
 ```console
@@ -925,7 +928,7 @@ module.exports = {
 };
 ```
 
-As result you will be able to write styles in the following way
+As result you will be able to write styles in the following way:
 
 ```js
 import colors from "./styles/colors";
@@ -944,13 +947,13 @@ export default {
 > [!WARNING]
 >
 > If you are using Babel you need to do the following in order for the setup to work
-
+>
 > 1. Add [`babel-plugin-add-module-exports`](https://github.com/59naga/babel-plugin-add-module-exports) to your configuration.
 > 2. You need to have only one **default** export per style module.
 
 ### Extract CSS
 
-Using [`mini-css-extract-plugin`](https://github.com/webpack-contrib/mini-css-extract-plugin).
+To extract CSS into separate files, use [`mini-css-extract-plugin`](https://github.com/webpack-contrib/mini-css-extract-plugin).
 
 **webpack.config.js**
 
@@ -981,9 +984,11 @@ module.exports = {
 };
 ```
 
+> 💡 Use this setup to extract and cache CSS in production while keeping fast style injection during development.
+
 ### Emit assets
 
-To write a asset from PostCSS plugin to the webpack, need to add a message in `result.messages`.
+To emit an asset from PostCSS plugin to the webpack, need to add a message in `result.messages`.
 
 The message should contain the following fields:
 
@@ -1032,6 +1037,8 @@ module.exports = {
 };
 ```
 
+> ℹ️ This allows your plugin to generate additional files as part of the build process, and Webpack will handle them like any other emitted asset.
+
 ### Add dependencies, contextDependencies, buildDependencies, missingDependencies
 
 The dependencies are necessary for webpack to understand when it needs to run recompilation on the changed files.
@@ -1085,9 +1092,9 @@ module.exports = {
 };
 ```
 
-Or you can use ready-made plugin [postcss-add-dependencies](https://www.npmjs.com/package/postcss-add-dependencies).
+> 💡 You can use ready-made plugin [postcss-add-dependencies](https://www.npmjs.com/package/postcss-add-dependencies) to simplify this process.
 
-2. Pass `loaderContext` in plugin.
+2. Pass `loaderContext` in plugin (for advanced setups).
 
 **webpack.config.js**
 
@@ -1117,8 +1124,12 @@ module.exports = {
 };
 ```
 
+> ⚠️ Use this approach only when managing dependencies via custom PostCSS configurations with dynamic imports or external files.
+
 **postcss.config.js**
 
+Pass the `webpackLoaderContext` through the PostCSS `api` object:
+
 ```js
 module.exports = (api) => ({
   plugins: [
@@ -1131,6 +1142,8 @@ module.exports = (api) => ({
 
 **postcssCustomPlugin.js**
 
+Register a file dependency using `loaderContext.addDependency`:
+
 ```js
 const path = require("path");
 
@@ -1149,9 +1162,12 @@ postcssCustomPlugin.postcss = true;
 module.exports = postcssCustomPlugin;
 ```
 
+> ✅ This method is ideal when you want to dynamically declare dependencies without relying on result.messages, especially in more complex setups or shared plugin configurations.
+
 ## Contributing
 
-Please take a moment to read our contributing guidelines if you haven't yet done so.
+We welcome all contributions!
+If you're new here, please take a moment to review our contributing guidelines before submitting issues or pull requests.
 
 [CONTRIBUTING](./.github/CONTRIBUTING.md)
 
