(DOCSP-34619) Fixes link. (#1548)

Author: erabil-mdb

source/tutorial/plan-om-resource.txt

@@ -298,7 +298,7 @@ Prerequisites
 
 - A running |kmip| server.
 - A running |onprem| instance, `configured to use KMIP <https://www.mongodb.com/docs/kubernetes-operator/master/tutorial/configure-kmip-backup-encryption/#configure-the-onprem-custom-resource-to-use-kmip-backup-encryption>`__.
-- A |tls| secret that :ref:`concatenates the private key and the KMIP client certificate in PEM format <client-cert-kmip>`.
+- A |tls| secret that `concatenates the private key and the KMIP client certificate in PEM format <https://www.mongodb.com/docs/kubernetes-operator/master/tutorial/configure-kmip-backup-encryption/#create-the-of-the-client-certificate-and-private-key>`__.
 
 Procedure
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