Update README.md

Removed suggestion to install new nodered, as Node 10 breaks BLE for the moment

Author: gfwilliams

README.md

@@ -23,9 +23,10 @@ Ideally use a Raspberry Pi 3 or Zero W, as these have Bluetooth LE on them alrea
 These instructions install up to date Node.js and Node-RED - however it can take a while! If you just want EspruinoHub and the IDE, see the next item.
 
 ```
-# Install a modern version of nodejs and nodered
 sudo apt-get install build-essential python-rpi.gpio
-bash <(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered)
+# OPTIONAL: Install a modern version of nodejs and nodered
+# Not recommended - This installs Node 10 which currently has issues with Bluetooth LE support
+# bash <(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered)
 # Get dependencies
 sudo apt-get install mosquitto mosquitto-clients bluetooth bluez libbluetooth-dev libudev-dev
 # Auto start Node-RED