Improve custom interceptor doc.

versioned_docs/version-8.4/self-managed/zeebe-deployment/zeebe-gateway/interceptors.md

@@ -166,6 +166,13 @@ in order to place the libraries' classes on the classpath.
 Similar to your interceptor class, any libraries you package must be compiled
 for the same language level as Zeebe's (i.e. currently JDK 11) or lower.
 
+:::note
+
+file path in jar should match package name. e.g, your package name is `com.example`, then you should packaging jar as `jar cvfm LoggingInterceptor.jar ./MANIFEST.MF ./com/example/*.class ./lib`
+
+:::
+
+
 ```sh
 # both runtime libraries and the manifest must be packaged together with the compiled classes
 jar cvfm LoggingInterceptor.jar ./MANIFEST.MF ./*.class ./lib