Documentation for Nestri (#116)

I have made documentation for Nestri, so everybody easy can find
instructions to get started. It will also make it easier for people to
help contribute to the documentation.

The documentation is built with Nuxt3, [Docus
](https://github.com/nuxt-themes) which uses Nuxt Content.

![image](https://github.com/user-attachments/assets/b30258c3-2267-4710-b8f4-48145e7c98d0)

![image](https://github.com/user-attachments/assets/6ccad52e-b6e1-4c8d-9c0c-bc4fae0227f1)

apps/docs/nuxt.config.ts

@@ -0,0 +1,39 @@
+import { createResolver, logger, defineNuxtModule } from '@nuxt/kit'
+import { $fetch } from 'ofetch'
+import { version } from './package.json'
+
+const { resolve } = createResolver(import.meta.url)
+
+// That allows to overwrite these dependencies paths via `.env` for local development
+const envModules = {
+  tokens: process?.env?.THEME_DEV_TOKENS_PATH || '@nuxt-themes/tokens',
+  elements: process?.env?.THEME_DEV_ELEMENTS_PATH || '@nuxt-themes/elements',
+  studio: process?.env?.THEME_DEV_STUDIO_PATH || '@nuxthq/studio',
+  typography: process?.env?.THEME_DEV_TYPOGRAPHY_PATH || '@nuxt-themes/typography'
+}
+
+const updateModule = defineNuxtModule({
+  meta: {
+    name: '@nuxt-themes/docus'
+  },
+  setup (_, nuxt) {
+    if (nuxt.options.dev) {
+      $fetch('https://registry.npmjs.org/@nuxt-themes/docus/latest').then((release) => {
+        if (release.version > version) {
+          logger.info(`A new version of Docus (v${release.version}) is available: https://github.com/nuxt-themes/docus/releases/latest`)
+        }
+      }).catch(() => {})
+    }
+  }
+})
+
+export default defineNuxtConfig({
+  // https://github.com/nuxt-themes/docus
+  extends: ['@nuxt-themes/docus'],
+
+  devtools: { enabled: true },
+
+
+
+  compatibilityDate: '2024-09-26'
+})