docs: Updates extends docs

Author: igorjacauna

docs/content/2.features/2.extends.md

@@ -0,0 +1,46 @@
+---
+title: Extends
+description: How extends modules
+navigation.icon: i-lucide-git-fork
+---
+
+`extends` is a feature that allows your application to "inherit" functionality from other modules.
+
+This enables you to distribute and organize your entire application in a fully modular way.
+
+You can simply have a single module that extends all the other modules required by your application.
+
+## How create a module
+
+Just run
+
+```bash
+pnpm create reactmos main-module
+```
+
+## How extends
+
+You can extend a module by specifying it in the `module.config.ts` file.
+
+```ts
+export default {
+  moduleName: 'main-module',
+  extends: [
+    'auth-module', // You can a use a published module
+    '../blog-module' // You can use a relative path to another module
+  ]
+}
+```
+
+::tip
+You can extend a module published in a registry, or simply use a relative path to the module you want to extend.
+::
+
+
+::warning
+When using a relative path, you must have the dependencies of the extended module installed in your project.
+::
+
+## What is inherit
+
+The main thing inherited from extended modules is their routes. Functions, methods, components, and other values can be shared through the `extras` option in `module.config.ts` and accessed using the `getExtras` helper function. You can see how [here](/features/extra-configs)