Added disclaimer to README.md

To remind that all use Mindows and other applications at their own risk.

README.md

@@ -6,6 +6,10 @@ This project is for creating a operating system with a modular concept on the Mi
 The Mindows-Core is a package of useful apis with support for different computer types and peripherals inside of Minecraft. This core is built modular for let users and developers the decision what they need and also let them the possibility to replace my own modules (for example for network operations) with their own.  
 Mindows itself is a operating system using the Mindows-Core which should support sandbox multitasking and which has an easy graphical interface. Mindows should be a good system for normal users as well as for developers.
 
+## Disclaimer
+
+This software will be distributed as it. Use at your own risk. This application could be able to crash Minecraft Clients/Servers or deleting important files. Please back-up all your files which can be found by the system to prevent data loss.
+
 ## Project Directory Structure
 
 The github working directory shows the whole system folder of the operating system. If the used version is runable ( = does not raise fatal errors), you should be able to copy these files and run it directly on a ComputerCraft Computer.