Update README.md

Added note about internal rework

Author: nielsdejong

README.md

@@ -4,6 +4,10 @@ Writing Cypher is all that's required to build your first dashboard in minutes.
 
 You can also install NeoDash on Neo4j Desktop from the [Graph App Gallery](https://install.graphapp.io/).
 
+```
+Note: NeoDash is currently being reworked internally to use a modern React architecture. Big code changes coming soon...
+```
+
 ### Features
 - Live reporting on a Neo4j database with a table, graph view, bar chart or line chart.
 - Interactively select parameters to be used as query parameters.