docs: ipc and watchFiles

Author: snitin315

src/content/configuration/dev-server.md

@@ -737,7 +737,7 @@ Usage via the CLI:
 npx webpack serve --hot
 ```
 
-To enables Hot Module Replacement without page refresh as a fallback in case of build failures, use `hot: 'only'`:
+To enable Hot Module Replacement without page refresh as a fallback in case of build failures, use `hot: 'only'`:
 
 **webpack.config.js**
 
@@ -760,6 +760,44 @@ T> Note that [`webpack.HotModuleReplacementPlugin`](/plugins/hot-module-replacem
 
 ## devServer.ipc
 
+`true` `string`
+
+The Unix socket to listen to (instead of a [`host`](#devserverhost)).
+
+Setting it to `true` will listen to a socket at `/your-os-temp-dir/webpack-dev-server.sock`:
+
+**webpack.config.js**
+
+```javascript
+module.exports = {
+  //...
+  devServer: {
+    ipc: true,
+  },
+};
+```
+
+Usage via the CLI:
+
+```bash
+npx webpack serve --ipc
+```
+
+You can also listen to a different socket with:
+
+**webpack.config.js**
+
+```javascript
+const path = require('path');
+
+module.exports = {
+  //...
+  devServer: {
+    ipc: path.join(__dirname, 'my-socket.sock'),
+  },
+};
+```
+
 ## devServer.liveReload
 
 `boolean = true`
@@ -1112,7 +1150,7 @@ npx webpack serve --no-static
 
 `string = path.join(process.cwd(), 'public')`
 
-Tell the server where to serve the content from. This is only necessary if you want to serve static files. [static.publicPath](#publicpath) will be used to determine where the bundles should be served from, and takes precedence.
+Tell the server where to serve the content from. This is only necessary if you want to serve static files. [`static.publicPath`](#publicpath) will be used to determine where the bundles should be served from, and takes precedence.
 
 **webpack.config.js**
 
@@ -1133,7 +1171,7 @@ T> It is recommended to use an absolute path.
 
 ### staticOptions
 
-It is possible to configure advanced options for serving static files from [static.directory](#directory). See the [Express documentation](http://expressjs.com/en/4x/api.html#express.static) for the possible options.
+It is possible to configure advanced options for serving static files from [`static.directory`](#directory). See the [Express documentation](http://expressjs.com/en/4x/api.html#express.static) for the possible options.
 
 **webpack.config.js**
 
@@ -1236,7 +1274,7 @@ npx webpack serve --no-static-serve-index
 
 `boolean` `object`
 
-Tell dev-server to watch the files served by the [static.directory]($directory) option. It is disabled by default. When enabled, file changes will trigger a full page reload.
+Tell dev-server to watch the files served by the [`static.directory`]($directory) option. It is disabled by default. When enabled, file changes will trigger a full page reload.
 
 **webpack.config.js**
 
@@ -1266,7 +1304,7 @@ To disable:
 npx webpack serve --no-static-watch
 ```
 
-It is possible to configure advanced options for watching static files from [static.directory](#directory). See the [chokidar](https://github.com/paulmillr/chokidar) documentation for the possible options.
+It is possible to configure advanced options for watching static files from [`static.directory`](#directory). See the [`chokidar`](https://github.com/paulmillr/chokidar) documentation for the possible options.
 
 ```javascript
 const path = require('path');
@@ -1287,6 +1325,35 @@ module.exports = {
 
 ## devServer.watchFiles
 
+`string` `[string]` `object` `[object]`
+
+This option allows you to configure list of globs/directories/files to watch for file changes. For example:
+
+```javascript
+module.exports = {
+  //...
+  devServer: {
+    watchFiles: ['src/**/*.php', 'public/**/*'],
+  },
+};
+```
+
+It is possible to configure advanced options for watching files. See the [`chokidar`](https://github.com/paulmillr/chokidar) documentation for the possible options.
+
+```javascript
+module.exports = {
+  //...
+  devServer: {
+    watchFiles: {
+      paths: ['src/**/*.php', 'public/**/*'],
+      options: {
+        usePolling: false,
+      },
+    },
+  },
+};
+```
+
 ## devServer.webSocketServer
 
 `string` `path` `function`