docs: macOS/Linux向けの実行手順を修正

noah-devtech · noah-devtech · commit 4887e4dec920 · 2025-12-22T19:28:59.000+09:00
diff --git a/README_ja.md b/README_ja.md
@@ -18,6 +18,7 @@ gradlew.bat run
 
 ```bash
 ./gradlew run
+chmod +x gradlew
 ```
 
 ### 開発の開始
