Packages.md

@@ -71,6 +71,8 @@ public enum PrinterCapability {
 ![brailleparser.svg](uploads/66abd2031fbd218077c664ad1fd99129/brailleparser.svg)
 
 ## **Extension**
+**CAUTION** JSON and XML are currently **not** supported, they only exist as dummy classes. If you want, you can implement these.
+
 If you want to extend the architecture, for example to add support for new fileformats, inherit from **AbstractBrailleTableParser**, adhere to the *contract* and register it in the **AbstractBrailleTableParser**:
 
 ```java