Applied suggestion

Author: fniephaus

docs/reference-manual/native-image/Layers.md

@@ -38,7 +38,7 @@ base-layer.so                    # initial layer (includes VM/JDK code)
 
 > Note: The current implementation is limited to only a base layer and an application executable.
 
-**At build time** a layer is an archive that contains the produced artifacts:
+**At build time** a layer is stored in a layer archive that contains the following artifacts:
 
 ```shell
 [base-layer.nil]                   # base layer archive file