(DOCSP-46119) Updates deprecated spec in examples. (#2023) (#2039)

* (DOCSP-46119) Updates deprecated spec in examples.

* Revises per tech review.

(cherry picked from commit 8225639)

Author: erabil-mdb

source/authentication.txt

@@ -47,7 +47,9 @@ Example Deployment CRD
      type: ReplicaSet
      members: 3
      version: "4.0.4-ent"
-     project: my-project
+     opsManager:
+       configMapRef:
+         name: my-configmap-name
      credentials: my-credentials
      security:
        tls:
@@ -71,7 +73,8 @@ Example User CRD
    spec:
      username: "CN=mms-user-1,OU=cloud,O=MongoDB,L=New York,ST=New York,C=US"
      db: "$external"
-     project: my-project
+     mongodbResourceRef:
+       name: my-resource
      roles:
        - db: "admin"
          name: "clusterAdmin"