Install instructions update

install.md

@@ -1,23 +1,42 @@
 # installation
 
+## tl;dr;
+```
+sudo apt install npm sane-utils imagemagick curl`
+curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
+sudo apt install -y nodejs
+wget -O ~/scanservjs.tar.gz $(curl -s https://api.github.com/repos/sbs20/scanservjs/releases/latest | grep browser_download_url | cut -d '"' -f 4)
+tar -xf scanservjs.tar.gz
+sudo ./scanservjs/install.sh
+rm scanservjs.tar.gz
+rm -r scanservjs
+```
+
 ## prerequisites
 ### SANE
 Get [SANE installed and working](https://github.com/sbs20/scanserv/blob/master/install-sane.md) and 
-check permissions etc
+check permissions etc.
 
 ### nodejs & npm
 Get nodejs and npm installed
 
 e.g.
- * Arch: `sudo pacman -S nodejs npm`
- * Debian: `sudo apt-get install nodejs npm`
+#### Arch:
+```
+sudo pacman -S nodejs npm`
+```
+#### Debian 9:
+```
+curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
+sudo apt install -y nodejs
+sudo apt-get install npm sane-utils imagemagick`
+```
 
-Note: You may have problems installing an up to date nodejs on Debian which includes `npm`. See
-[here](https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions)
-for how to install nodejs
+For more on problems installing an up to date nodejs on Debian which includes
+`npm`. See [here](https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions)
 
 Note 2: Debian calls the node binary "nodejs", which results in npm not being able to find the command.
- Use one of the following to resolve the issue:
+Use one of the following to resolve the issue:
  * `ln -s /usr/bin/nodejs /usr/bin/node`
  * `sudo apt-get install nodejs-legacy`