Update README.md

Author: andyb2000

README.md

@@ -8,6 +8,8 @@
 This is the home-assistant integration based on @alistair23 BLE implementation of Husqvarna bluetooth mowers
 https://github.com/alistair23/AutoMower-BLE
 
+** THIS IS DEVELOPMENTAL/DEBUG HACS integration so expect errors! **
+
 NOTE - It is recommended to use the python library direct from the source tree, rather than pypi/pip libraries. This is due to the library being behind on pypi for legacy applications.
 I have included in this HACS repo manifest for Home Assistant/Python/PIP to install from the main repo above, so this should happen.
 If not, you need to manually update the library on your home assistant installation, in the location: