Fix typo in FAQ question

Author: v-ccolin

articles/sap/center-sap-solutions/faq.yml

@@ -121,7 +121,7 @@ sections:
                 
                 Along with these logical resources, ACSS also creates a Managed resource group with a storage account. ACSS uses this resource group to enable the SAP management capabilities. 
 
-      - question:  Does ACSS install any extenstion during installation and registration?
+      - question:  Does ACSS install any extension during installation and registration?
         answer: |
                 Yes, ACSS automatically installs two extensions on both Windows and Linux virtual machines to enable workload-specific capabilities and monitoring. To ensure successful registration with ACSS, please make sure the following extensions are whitelisted