Fixing spell check error

Author: Aman Jain

specification/storagecache/resource-manager/Microsoft.StorageCache/stable/2024-07-01/amlfilesystem.json

@@ -1651,7 +1651,7 @@
                 "exportIterationCount": {
                   "readOnly": true,
                   "type": "integer",
-                  "description": "Number of iteratons completed since the start of the export.",
+                  "description": "Number of iterations completed since the start of the export.",
                   "format": "int32"
                 },
                 "lastSuccessfulIterationCompletionTimeUTC": {