Better documentation for how a resourceref works (#96)

<!-- This change is generated by MagicModules. -->
/cc @rambleraptor

plugins/modules/gcp_container_node_pool.py

@@ -109,16 +109,14 @@ options:
         required: false
       labels:
         description:
-        - 'The map of Kubernetes labels (key/value pairs) to be applied to each node.
-          These will added in addition to any default label(s) that Kubernetes may
-          apply to the node. In case of conflict in label keys, the applied set may
-          differ depending on the Kubernetes version -- it''s best to assume the behavior
-          is undefined and conflicts should be avoided. For more information, including
-          usage and the valid values, see: U(http://kubernetes.io/v1.1/docs/user-guide/labels.html)
-          An object containing a list of "key": value pairs.'
-        - 'Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.'
-        required: false
-      local_ssd_count:
+            - The cluster this node pool belongs to.
+            - 'This field represents a link to a Cluster resource in GCP. It can be specified
+              in two ways. You can add `register: name-of-resource` to a gcp_container_cluster
+              task and then set this cluster field to "{{ name-of-resource }}" Alternatively,
+              you can set this cluster to a dictionary with the name key where the value is the
+              name of your Cluster.'
+        required: true
+    zone:
         description:
         - The number of local SSD disks to be attached to the node.
         - 'The limit for this value is dependant upon the maximum number of disks