Update observability.md

Author: jooseppi-luna

content/docs/deployment/csmoperator/modules/observability.md

@@ -16,9 +16,12 @@ The CSM Observability module for supported Dell CSI Drivers can be installed via
 - Enable Observability module and components in [sample manifests](https://github.com/dell/csm-operator/tree/main/samples). If cert-manager has already been installed, don't enable it.
 - Observability will deploy with self-signed certificates by default. If you want to have custom certificates created instead, please generate certificates and private keys, encode them in base64, and insert them into the sample file as shown below for whichever components you are enabling:
 ```
+    # observability: allows to configure observability
+    - name: observability
+...
       components:
         - name: topology
-   ...
+...
           # certificate: base64-encoded certificate for cert/private-key pair -- add cert here to use custom certificates
           #  for self-signed certs, leave empty string
           # Allowed values: string