Update 7-graal-native-executables.adoc

Author: lihaoyi

blog/modules/ROOT/pages/7-graal-native-executables.adoc

@@ -606,7 +606,10 @@ These artifacts can be seen online:
 And downloaded via
 
 ```bash
-curl https://repo1.maven.org/maven2/com/lihaoyi/mill-dist-native-mac-aarch64/0.12.6/mill-dist-native-mac-aarch64-0.12.6.jar -o mill-dist-native.jar
+curl https://repo1.maven.org/maven2/com/lihaoyi/mill-dist-native-mac-aarch64/0.12.6/mill-dist-native-mac-aarch64 -o mill-dist-native
+chmod +x mill-dist-native
+./mill-dist-native version
+0.12.6
 ```
 
 Any application using these binaries can similarly look at the OS/CPU they are running