docs: update install command

Author: johannschopplich

README.md

@@ -23,7 +23,7 @@
 > [📖 Read the documentation](https://nuxt-kirby.byjohann.dev)
 
 ```bash
-npx nuxt@latest module add kirby
+npx nuxt module add kirby
 ```
 
 ## Basic Usage

docs/essentials/getting-started.md

@@ -9,7 +9,7 @@ Want to jump right in? Choose one of the [Starter Kits](/essentials/starter-kits
 ## Step 1: Install Nuxt Kirby
 
 ```bash
-npx nuxt@latest module add kirby
+npx nuxt module add kirby
 ```
 
 ## Step 2: Add the Module

docs/guides/multi-language-sites.md

@@ -7,7 +7,7 @@ Nuxt Kirby provides seamless integration with multi-language Kirby sites using [
 Install the official [Nuxt i18n](https://i18n.nuxtjs.org) module before proceeding:
 
 ```bash
-npx nuxt@latest module add i18n
+npx nuxt module add i18n
 ```
 
 ## Basic Usage