Prepare release 3.0.0 (#206)

* Preapare release 3.0.0

* Added release summary

* Drop ansible 2.9 mentions

docs/community.okd.openshift_inventory.rst

@@ -13,6 +13,15 @@ community.okd.openshift
    :local:
    :depth: 1
 
+DEPRECATED
+----------
+:Removed in collection release after 
+:Why: As discussed in https://github.com/ansible-collections/kubernetes.core/issues/31, we decided to
+remove the openshift inventory plugin in release 4.0.0.
+
+:Alternative: Use :ref:`kubernetes.core.k8s_info <kubernetes.core.k8s_info_module>` and :ref:`ansible.builtin.add_host <ansible.builtin.add_host_module>` instead.
+
+
 
 Synopsis
 --------
@@ -320,24 +329,24 @@ Examples
 
     # File must be named openshift.yaml or openshift.yml
 
-    # Authenticate with token, and return all pods and services for all namespaces
-    plugin: community.okd.openshift
-    connections:
-      - host: https://192.168.64.4:8443
-        api_key: xxxxxxxxxxxxxxxx
-        verify_ssl: false
+    - name: Authenticate with token, and return all pods and services for all namespaces
+      plugin: community.okd.openshift
+      connections:
+        - host: https://192.168.64.4:8443
+          api_key: xxxxxxxxxxxxxxxx
+          verify_ssl: false
 
-    # Use default config (~/.kube/config) file and active context, and return objects for a specific namespace
-    plugin: community.okd.openshift
-    connections:
-      - namespaces:
-        - testing
+    - name: Use default config (~/.kube/config) file and active context, and return objects for a specific namespace
+      plugin: community.okd.openshift
+      connections:
+        - namespaces:
+            - testing
 
-    # Use a custom config file, and a specific context.
-    plugin: community.okd.openshift
-    connections:
-      - kubeconfig: /path/to/config
-        context: 'awx/192-168-64-4:8443/developer'
+    - name: Use a custom config file, and a specific context.
+      plugin: community.okd.openshift
+      connections:
+        - kubeconfig: /path/to/config
+          context: 'awx/192-168-64-4:8443/developer'
 
 
 
@@ -346,10 +355,14 @@ Status
 ------
 
 
+- This inventory will be removed in version 4.0.0. *[deprecated]*
+- For more information see `DEPRECATED`_.
+
+
 Authors
 ~~~~~~~
 
-- Chris Houseknecht <@chouseknecht>
+- Chris Houseknecht (@chouseknecht)
 
 
 .. hint::