docs(devserver): add documentation for liveReload option

src/content/api/cli.md

@@ -11,6 +11,7 @@ contributors:
   - EugeneHlushko
   - byzyk
   - wizardofhogwarts
+  - EslamHiko
 related:
   - title: Analyzing Build Statistics
     url: https://survivejs.com/webpack/optimizing-build/analyzing-build-statistics/
@@ -299,6 +300,7 @@ Parameter         | Explanation                              | Usage
 `--define`        | Define any free variable, see [shimming](/guides/shimming) | `--define process.env.NODE_ENV="'development'"`
 `--hot`           | Enables [Hot Module Replacement](/concepts/hot-module-replacement) | `--hot=true`
 `--labeled-modules` | Enables labeled modules [Uses LabeledModulesPlugin] |
+`--live-reload`           | Enables page live reloading | `--live-reload=true`
 `--plugin`        | Load this [plugin](/configuration/plugins/) |
 `--prefetch`      | Prefetch the particular file             | `--prefetch=./files.js`
 `--provide`       | Provide these modules as globals, see [shimming](/guides/shimming) | `--provide jQuery=jquery`

src/content/configuration/dev-server.md

@@ -696,6 +696,29 @@ T> [`watchOptions`](#devserver-watchoptions-) will have no effect when used with
 
 T> If you use the CLI, make sure __inline mode__ is disabled.
 
+## `devServer.liveReload`
+
+`boolean: true`
+
+When `devServer.liveReload` is enabled, the dev-server will reload/refresh the page when file changes if [`devServer.hot`](#devserverhot) option is disabled or [`devServer.watchContentBase`](#devserverwatchcontentbase) is enabled.
+
+__webpack.config.js__
+
+```javascript
+module.exports = {
+  //...
+  devServer: {
+    liveReload: true
+  }
+};
+```
+
+Usage via the CLI
+
+```bash
+webpack-dev-server --live-reload
+```
+
 
 ## `devServer.mimeTypes` 🔑