Add template for consul-k8s release notes.

website/content/docs/release-notes/consul-k8s/0.43.x.mdx

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+---
+layout: docs
+page_title: 0.43.x
+description: >-
+  Consul Kubernetes release notes for version 1.11.x
+---
+
+# Consul 1.11.0
+
+## Release Highlights
+
+- **Name of Highlight :** Describe it here
+
+- **Name of Highlight :** Describe it here
+
+- **Name of Highlight :** Describe it here
+
+## What's Changed
+
+- First change
+
+- Second change
+
+- Third change
+
+## Support Software Versions
+
+- Consul:
+- Kubernetes:
+- Kubectl:
+
+## Upgrading
+
+<!--
+Instructions for the upgrading process can go here. If standard upgrade instructions
+already exist in the product docs, this section can just cover anything unique about
+upgrading to this version and a link to the page where the standard instructions are.
+An example is included bellow.
+-->
+
+For detailed information on upgrading, please refer to the [upgrade details page](/docs/upgrading/upgrade-specific#consul-1-11-0)
+
+## Change logs
+
+The change log for this Major release is listed below. When Maintenance versions
+are released, links to their change logs will be added here.
+
+[1.11.0 changelog](https://github.com/hashicorp/consul-k8s/releases/tag/v0.43.0).