Installing Node-Red to Jessie Lite Quick Tutorial

Quick tutorial how to install Node-Red with screenshots.

If you have the minimal version of Jessie, or other Debian based install, that doesn’t have Node-RED already installed, you can install or upgrade using the Node-RED upgrade script.
SSH to your Pi-s terminal and Run:
```
bash <(curl -sL https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered)
```
This will promt the following window:

Press y and the installation will begin. This can take several minutes (more like 10-ish).
After node red is installed start it with:
```
node-red-start
```
for stopping use:
```
node-red-stop
```
Check if it works by going to http://your-pi-ip:1880. Note the port number :1880.
If everything works you will be greeted with node reds main window:
Lastly if you want to autostart node red on boot run following command:
```
sudo systemctl enable nodered.service
```

*Tutorial on Linux version 4.4.50/ Raspbian v. 8 (jessie)