Fix reference to file name in generated configMap

Documentation prose refers to the file named `.properties`, the correct file name is `application.properties`.

Author: wfhartford

content/en/docs/tasks/manage-kubernetes-objects/kustomization.md

@@ -120,7 +120,7 @@ metadata:
 ```
 
 {{< note >}}
-Each variable in the `.env` file becomes a separate key in the ConfigMap that you generate. This is different from the previous example which embeds a file named `.properties` (and all its entries) as the value for a single key.
+Each variable in the `.env` file becomes a separate key in the ConfigMap that you generate. This is different from the previous example which embeds a file named `application.properties` (and all its entries) as the value for a single key.
 {{< /note >}}
 
 ConfigMaps can also be generated from literal key-value pairs. To generate a ConfigMap from a literal key-value pair, add an entry to the `literals` list in configMapGenerator. Here is an example of generating a ConfigMap with a data item from a key-value pair: