docs: add official site

docs/.vitepress/config.mts

@@ -0,0 +1,40 @@
+import { defineConfig } from "vitepress";
+
+// https://vitepress.dev/reference/site-config
+export default defineConfig({
+  title: "Sky Follower Bridge",
+  description: "Official Documentation of Sky Follower Bridge",
+  themeConfig: {
+    // https://vitepress.dev/reference/default-theme-config
+    logo: {
+      src: "/images/logo.png",
+      alt: "Sky Follower Bridge Logo",
+    },
+    nav: [
+      { text: "Home", link: "/" },
+      { text: "Getting Started", link: "/get-started" },
+      { text: "Troubleshooting", link: "/troubleshooting" },
+    ],
+
+    socialLinks: [
+      {
+        icon: "github",
+        link: "https://github.com/kawamataryo/sky-follower-bridge",
+      },
+    ],
+
+    outline: {
+      level: "deep",
+    },
+
+    editLink: {
+      pattern:
+        "https://github.com/kawamataryo/sky-follower-bridge/edit/main/docs/:path",
+      text: "Edit this page on GitHub",
+    },
+
+    search: {
+      provider: "local",
+    },
+  },
+});