ST: fixing doc

CLC-qthing/SiliconTorch/NVSExplorer.md

@@ -88,7 +88,7 @@ In the following list, `argument` stands for the message content received on the
   **topic**: `REQUEST/export_json`  
   **description**: returns a `JSON` string containing every key from `NVS` except `NVS_TYPE_BLOB` with the structure:  
     `{`  
-    `  "stats": { "": 0, "": 0, "": 0 },`  
+    `  "stats": { "used_entries": <NUM>, "free_entries": <NUM>, "total_entries": <NUM> },`  
     `  "storage": {`  
     `    "<NAMESPACE>": {`  
     `      "<KEY>": {`