Introduce better naming for volumes

execution/README.md

@@ -153,11 +153,11 @@ declarations for different volume types.
 Using a [hostPath volume](https://kubernetes.io/docs/concepts/storage/volumes/#hostpath) is the easiest option when
 running Theodolite locally, e.g., with minikube or kind.
 
-Just modify `infrastructure/kubernetes/volumeSingle.yaml` by setting `path` to the directory on your host machine where
+Just modify `infrastructure/kubernetes/volume-hostpath.yaml` by setting `path` to the directory on your host machine where
 all benchmark results should be stored and run:
 
 ```sh
-kubectl apply -f infrastructure/kubernetes/volumeSingle.yaml
+kubectl apply -f infrastructure/kubernetes/volume-hostpath.yaml
 ```
 
 ##### *local* volume
@@ -166,12 +166,12 @@ A [local volume](https://kubernetes.io/docs/concepts/storage/volumes/#local) is
 access (e.g. via SSH) to one of your cluster nodes.
 
 You first need to create a directory on a selected node where all benchmark results should be stored. Next, modify
-`infrastructure/kubernetes/volumeCluster.yaml` by setting `<node-name>` to your selected node (this node will most
+`infrastructure/kubernetes/volume-local.yaml` by setting `<node-name>` to your selected node (this node will most
 likely also execute the job). Further, you have to set `path` to the directory on the node you just created. To deploy
 you volume run:
 
 ```sh
-kubectl apply -f infrastructure/kubernetes/volumeCluster.yaml
+kubectl apply -f infrastructure/kubernetes/volume-local.yaml
 ```
 
 ##### Other volumes