Update Kueue's manifests to 0.7.0 (GoogleCloudPlatform#707)

* Update DWS-examples README to use latest Kueue version, delete Kueue manifest file

* Update tutorials-and-examples/workflow-orchestration/dws-examples/README.md

Co-authored-by: Aldo Culquicondor <1299064+alculquicondor@users.noreply.github.com>

* Add link to Kueue's installation documentation

---------

Co-authored-by: Aldo Culquicondor <1299064+alculquicondor@users.noreply.github.com>

tutorials-and-examples/workflow-orchestration/dws-examples/README.md

@@ -1,11 +1,22 @@
 # Dynamic Workload Scheduler examples
 
-The repository contains examples on how to use DWS in GKE. More information about DWS is 
+The repository contains examples on how to use DWS in GKE. More information about DWS is
 available [here](https://cloud.google.com/kubernetes-engine/docs/how-to/provisioningrequest).
 
-Files included:
+## Prerequisites
+
+### [Kueue](https://kueue.sigs.k8s.io/)
+To install a released version of Kueue in your cluster, run the following command:
+
+```sh
+VERSION=v0.7.0
+kubectl apply --server-side -f https://github.com/kubernetes-sigs/kueue/releases/download/$VERSION/manifests.yaml
+```
+
+For more configuration options visit [Kueue's installation guide.](https://kueue.sigs.k8s.io/docs/installation/)
+
+## Files included
 
-* `kueue-manifests.yaml` - [Kueue](https://kueue.sigs.k8s.io/) configuration files with ProvisioningRequest and DWS support enabled.
 * `dws-queue.yaml` - Kueue's Cluster and Local queues with ProvisioningRequest and DWS support enabled.
 * `job.yaml` - Sample job that requires GPU and uses DWS-enabled queue. Contains optional annotation ` provreq.kueue.x-k8s.io/maxRunDurationSeconds` which sets `maxRunDurationSeconds` for the created ProvisioningRequest