chore: fix artifacthub metadata

Signed-off-by: Flavio Castelli <fcastelli@suse.com>

artifacthub-pkg.yml

@@ -4,29 +4,33 @@
 #
 # This config can be saved to its default location with:
 #   kwctl scaffold artifacthub > artifacthub-pkg.yml 
-version: 0.0.1
+version: 0.0.1-unreleased
 name: policy-name
 displayName: Policy Name
-createdAt: 2023-03-21T15:45:26.965260843Z
+createdAt: 2023-10-16T08:39:33.352432617Z
 description: Short description
 license: Apache-2.0
 homeURL: https://github.com/yourorg/policy-name
 containersImages:
 - name: policy
-  image: ghcr.io/yourorg/policies/policy-name:v0.0.1
+  image: ghcr.io/yourorg/policies/policy-name:v0.0.1-unreleased
 keywords:
 - pod
 - cool policy
 - kubewarden
 links:
 - name: policy
-  url: https://github.com/yourorg/policy-name/releases/download/v0.0.1/policy.wasm
+  url: https://github.com/yourorg/policy-name/releases/download/v0.0.1-unreleased/policy.wasm
 - name: source
   url: https://github.com/yourorg/policy-name
 install: |
   The policy can be obtained using [`kwctl`](https://github.com/kubewarden/kwctl):
   ```console
-  kwctl pull ghcr.io/yourorg/policies/policy-name:v0.0.1
+  kwctl pull ghcr.io/yourorg/policies/policy-name:v0.0.1-unreleased
+  ```
+  Then, generate the policy manifest and tune it to your liking. For example:
+  ```console
+  kwctl scaffold manifest -t ClusterAdmissionPolicy registry://ghcr.io/yourorg/policies/policy-name:v0.0.1-unreleased
   ```
 maintainers:
 - name: Author name