chore(docs): update vitepress configuration

docs/.vitepress/config.ts

@@ -0,0 +1,22 @@
+import { defineConfig } from 'vitepress';
+
+export default defineConfig({
+  lang: 'ru-RU',
+  title: "Toolkit",
+  description: "A collection of typescript and javascript development tools",
+  rewrites: {
+    'packages/:pkg/README.md': 'packages/:pkg/index.md',
+  },
+  themeConfig: {
+    sidebar: [
+      {
+        text: 'Пакеты',
+        items: [
+          { text: '@robonen/tsconfig', link: '/packages/tsconfig/' },
+          { text: '@robonen/renovate', link: '/packages/renovate/' },
+          { text: '@robonen/stdlib', link: '/packages/stdlib/' },
+        ],
+      },
+    ],
+  },
+});

docs/index.md

@@ -0,0 +1,14 @@
+---
+# https://vitepress.dev/reference/default-theme-home-page
+layout: home
+
+hero:
+  name: Toolkit 
+  tagline: A collection of typescript and javascript development tools
+  actions:
+    - theme: brand
+      text: Get Started
+      link: /
+    - theme: alt
+      text: View on GitHub
+      link: /