diff --git a/X. Appendices/D.3.1. Launcher manifest.md b/X. Appendices/D.3.1. Launcher manifest.md
index 0e59201..cddaf47 100644
--- a/X. Appendices/D.3.1. Launcher manifest.md	
+++ b/X. Appendices/D.3.1. Launcher manifest.md	
@@ -1,4 +1,4 @@
-### D.3.1 Launcher manifest
+### 附录D.3.1 Launcher manifest
 
 你需要指定一个合适的Launcher作为`META-INF/MANIFEST.MF`的`Main-Class`属性。你实际想要启动的类（也就是你编写的包含main方法的类）需要在`Start-Class`属性中定义。