fix broken link

Author: rosemarymarano

documentation/1.9/content/concepts/model.md

@@ -257,7 +257,7 @@ This feature can also remove items that were created by WebLogic Server template
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-This feature does not apply to named security providers within a realm. These items follow a special set of rules that are required to maintain their ordering. See [Modeling Security Providers]({{< relref "/samples/use_cases#modeling-security-providers" >}}) for detailed information.
+This feature does not apply to named security providers within a realm. These items follow a special set of rules that are required to maintain their ordering. See [Modeling Security Providers]({{< relref "/samples/securityproviders-model.md" >}}) for detailed information.
 
 This feature cannot be use to un-deploy applications or remove libraries.