🔧 コードフォーマットの設定ファイルを追加

.editorconfig

@@ -1,17 +1,14 @@
+; https://editorconfig.org
+
 root = true
 
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 4
+indent_size = 2
 indent_style = space
-insert_final_newline = true
-max_line_length = 120
 trim_trailing_whitespace = true
+insert_final_newline = true
 
 [*.md]
-indent_size = 2
 trim_trailing_whitespace = false
-
-[*.{cjs,mjs,js,json,yml,yaml}]
-indent_size = 2

.prettierrc

@@ -0,0 +1,22 @@
+{
+  "plugins": [
+    "prettier-plugin-astro"
+  ],
+  "arrowParens": "always",
+  "printWidth": 80,
+  "singleQuote": true,
+  "jsxSingleQuote": true,
+  "semi": true,
+  "trailingComma": "all",
+  "tabWidth": 2,
+  "overrides": [
+    {
+      "files": [
+        "*.astro"
+      ],
+      "options": {
+        "parser": "astro"
+      }
+    }
+  ]
+}

astro.config.mjs

@@ -1,4 +1,12 @@
+import react from "@astrojs/react";
+import sitemap from "@astrojs/sitemap";
 import { defineConfig } from 'astro/config';
 
 // https://astro.build/config
-export default defineConfig({});
+export default defineConfig({
+
+  integrations: [
+    react(),
+    sitemap(),
+    ]
+});