fixed mistype in README.md

Author: sanikolaev

README.md

@@ -224,7 +224,7 @@ The response JSON structure:
 | `type` | Set to `json response` if the request type was `unknown json request` and `sql response` for `unknown sql request`. |
 | `message` | A JSON object potentially containing an `error` message for displaying and/or logging. This is what Manticore Search will forward to the end-user. |
 | `error_code` | An integer representing the HTTP error code which will be a part of the HTTP response to the user making a JSON over HTTP request. For SQL over HTTP/mysql communications, this field is ignored. |
-| `version` | Indicates the current protocol version being used. Currently version is 2. |
+| `version` | Indicates the current protocol version being used. Current version is 3. |
 
 
 Example of HTTP Response: