Update functions-app-settings.md

Author: georgeOsdDev

articles/azure-functions/functions-app-settings.md

@@ -203,7 +203,7 @@ A Blob Storage SAS URL for a second storage account used for key storage. By def
 
 |Key|Sample value|
 |--|--|
-|AzureWebJobsSecretStorageSa| `<BLOB_SAS_URL>` | 
+|AzureWebJobsSecretStorageSas| `<BLOB_SAS_URL>` | 
 
 ## AzureWebJobsSecretStorageType