Added instructions for Nodejs/npm installation

Added/cleaned up instructions for nodejs/npm installation/update

Breeze.UI/README.md

@@ -19,18 +19,28 @@ cd ./Breeze/Breeze.UI
 
 Using Ubuntu
 `curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -`
+
 `sudo apt-get install -y nodejs`
 
 Using Debian, as root
 `curl -sL https://deb.nodesource.com/setup_8.x | bash -`
+
 `apt-get install -y nodejs`
 
-## Update npm to newest version:
+## Install/Update Nodejs/npm to stable/latest release version:
 
 `sudo npm install npm@latest -g`
 
+`sudo npm install n -g`
+
+`sudo n stable` 
+
+*To install the latest release, use `n latest`. Alternatively, you can run n #.#.# to get a specific Node version.
+
 ## Install dependencies with npm:
 
+From within Breeze.UI directory run:
+
 ``` bash
 npm install
 ```