Update hardware page to include specs required for running PiNet as a virtual machine.

Also fixed README.md file

Author: gbaman

README.md

@@ -3,20 +3,23 @@ The PiNet documentation website is built using Jekyll. If you would like to cont
 
 The main site can be found at [http://PiNet.org.uk](http://PiNet.org.uk).
 
-#Running site locally
+## Found a mistake or want to contribute to the documentation?
+Check out the [PiNet documentation contribution page](http://pinet.org.uk/articles/CONTRIBUTING.html) for details on how to get involved!
 
-##Installing Jekyll and dependancies.
+# Running site locally
+
+## Installing Jekyll and dependancies.
 To run the site locally, 
 - First [install Ruby](https://www.ruby-lang.org/en/documentation/installation/).   
 - Then install bundler ```gem install bundler```.   
 - Finally install Jekyll ```gem install jekyll```.   
 - Grab the documentation site ```git clone https://github.com/PiNet/PiNet.github.io.git```
 - Use bundler to make sure you have all the required gems ```bundle install --binstubs```
 
-##Running development server
+## Running development server
 To run the development server - ```./bin/jekyll serve watch```   
 Then navigate to ```http://localhost:4000/``` in a web browser.
 
 
-#License
+# License
 The PiNet documentation is released under the MIT License. Check the [LICENSE](LICENSE) file for more information.

articles/installation/hardware.md

@@ -16,25 +16,43 @@ In fact, PiNet requires extremely limited resources to run by default.
 There are though some limited use cases where the server does need to be powerful.    
 
 ### So what type of PC hardware do I need for my PiNet server?    
-This is an extremely wide ranging question and it is impossible to say. A few rough guidelines though for a class set (20) Raspberry Pis would be.  
+This is an extremely wide ranging question and it is impossible to say. A few rough guidelines though for a class set (20) Raspberry Pis can be found below. They are split into Dedicated (if running PiNet on a dedicated machine directly on the hardware) or Virtualisation (if running PiNet/Ubuntu in a virtual machine on top of Windows/Mac OS/Linux).    
 
-#### Minimum   
+#### Dedicated Minimum   
 - Single core 1GHz processor (Intel Celeron or greater)   
 - 1GB of RAM   
 - 20GB of hard disk space   
 - A gigabit ethernet port (100mbit/s is not officially supported)
 
-#### Recommended 
+#### Dedicated Recommended 
 - Duel core 1.5GHz processor (Intel Pentium or greater)   
 - 2GB of RAM   
 - 40GB of hard disk space   
 - A gigabit ethernet port (100mbit/s is not officially supported)   
 
-#### Large setup recommended (80+ Pis)
+#### Dedicated Large setup recommended (80+ Pis)
 - Duel core 2GHz processor (Intel Core I3 or greater)   
 - 4GB of RAM   
 - 40GB of hard disk space   
 - A gigabit ethernet port (100mbit/s is not officially supported)  
+
+#### Virtualisation Minimum   
+- Duel core 1.8GHz processor (Intel Core 2 Duo or greater)     
+- 4GB of RAM (1.5GB allocated to PiNet/Ubuntu)   
+- 20GB of hard disk space (free to be used by PiNet/Ubuntu)   
+- A gigabit ethernet port (100mbit/s is not officially supported)
+
+#### Virtualisation Recommended   
+- Duel core 2.0GHz processor (Intel Core 2 Duo or greater)   
+- 6GB of RAM (2.5GB allocated to PiNet/Ubuntu)  
+- 40GB of hard disk space (free to be used by PiNet/Ubuntu)   
+- A gigabit ethernet port (100mbit/s is not officially supported)
+
+#### Virtualisation Large setup recommended (80+ Pis)
+- Duel core 2GHz processor (Intel Core I3 or greater)   
+- 8GB of RAM (4GB allocated to PiNet/Ubuntu)  
+- 40GB of SSD space (free to be used by PiNet/Ubuntu)  
+- A gigabit ethernet port (100mbit/s is not officially supported) 
 
 For anything greater than 100 Raspberry Pis, it would be recommended to look into port trunking or 10gbit/s core networking.