CMA Update token example

Author: Michael Burke

nodes/cma/nodes-cma-autoscaling-custom-trigger-auth.adoc

@@ -156,7 +156,7 @@ metadata:
   name: my-secret
   namespace: my-namespace
 data: 
-  bearerToken: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXV" <1>
+  bearerToken: "<bearer_token>" <1>
 ----
 <1> Specifies a bearer token to use with bearer authentication. The value must be base-64 encoded.