Adding documentation for Operator version 6

docs/notes/v6.0.0.md

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+# MinIO Operator v6.0.0 release notes
+
+## About this release
+
+MinIO Operator is the production-ready easiest way to manage MinIO deployments in kubernetes. And with a new version, new features, a lot of bug fixes, new kubernetes base version requirements, deprecations and much more.
+
+## What’s new?
+
+Operator 6.0.0 is now available, this release requires Kubernetes version 1.25.0 or later, you must upgrade your Kubernetes cluster to 1.25.0 or later to use Operator v6.0.0+.
+
+* Introducing MinIO Job
+* Sidecard container
+* TLS refactors
+* Operator STS
+* Fields immutable
+* Field `spec.pools.*.name` is required starting v5.0.15
+* Headless service port name is now renamed based on TLS settings
+
+## Introducing MinIO Job
+
+MinIO Job is designed to manage MinIO using Jobs. Typically, the DevOps team must perform tasks on the fly while deploying MinIO, such as creating a bucket, adding a policy, attaching the policy to a user, and so on. With the current approach, we either continuously modify our existing Tenant CRD, which is already overpopulated, or we adopt a new approach to distribute the load between what a Tenant is supposed to do and what a new controller can handle if the MinIO Job CRD is added. In other words, MinIO Job allows you to manage some of these tasks imperatively through a new CRD. It is like controlling things with mc but via CRD. Please review the examples below for a better understanding of this added feature.
+
+### MinIO Job Example (To create a bucket with a Job):
+
+> Assuming that Operator is installed and latest version is used
+
+1. Enable STS:
+
+```shell
+kubectl -n minio-operator set env deployment/minio-operator OPERATOR_STS_ENABLED=on
+```
+
+2. Deploy `MinIOJob` CRD along with its binded policy:
+
+```yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: mc-job-sa
+  namespace: minio-tenant-1
+---
+apiVersion: sts.min.io/v1alpha1
+kind: PolicyBinding
+metadata:
+  name: mc-job-bingding
+  namespace: minio-tenant-1
+spec:
+  application:
+    serviceaccount: mc-job-sa
+    namespace: minio-tenant-1
+  policies:
+    - consoleAdmin
+---
+apiVersion: job.min.io/v1alpha1
+kind: MinIOJob
+metadata:
+  name: minio-test-job
+  namespace: minio-tenant-1
+spec:
+  serviceAccountName: mc-job-sa
+  tenant:
+    name: myminio
+    namespace: minio-tenant-1
+  commands:
+    - op: make-bucket
+      args:
+        name: memes
+```
+
+3. Job is completed, bucket created:
+
+<TODO: See how to put an image with the bucket>