Update debian.rst

improve formatting

docs/installing/os/debian.rst

@@ -143,8 +143,8 @@ Next clone this repository :
 
 Now we are going to install all dependencies for NodeBB via NPM :
 
-    $ cd /path/to/nodebb/install/location/nodebb (or if you are on your install location directory run : cd nodebb)
-    $ npm install
+	$ cd /path/to/nodebb/install/location/nodebb (or if you are on your install location directory run : cd nodebb)
+	$ npm install
 
 Install NodeBB by running the app with `--setup` flag :
 
@@ -174,4 +174,4 @@ Extras, tips and Advice
 
 You should secure your NodeBB installation, `take a look here <https://github.com/NodeBB/NodeBB#securing-nodebb>`_.
 
-You should use Nginx (or similar) in order to reverse proxy your NodeBB installation on the port 80, :doc:`take a look here <../../configuring/proxies>`
+You should use Nginx (or similar) in order to reverse proxy your NodeBB installation on the port 80, :doc:`take a look here <../../configuring/proxies>`