Updated README.md

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README.md

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 # mcdecomp
 A tool to Decompile Minecraft 1.16.x-1.17.x. Currently under construcition (You can get the code, but you can't import it easily to your IDE)
+
+## System requirements
+
+- Java installed (Java 16+ for minecraft 1.17.x )
+- A Windows PC
+- Some Internet
+
+## How to use
+
+Download the latest release from [here](https://github.com/vinc3nz/mcdecomp/releases).
+Run the decompile.bat on your PC (Double-Click it)
+Wait until it has downloaded everything
+Choose your version range by pressing the number before your version range
+Choose your specific version.
+Wait. It takes a long time.
+The mapped and decompiled code is in a folder with the version name, e.g. 1.17.1/src
+
+## License
+
+```
+You are allowed to use this tool in any way, as long as it does not complain with the Mojang EULA.
+You are not allowed to share the code of this tool in any way. Sharing the Repository-Link is allowed. Repost are not allowed.
+I (vinc3nz) am not responsible for any illegal things made with this tool. I am not responsible for any damage on your computer which is caused trough this tool.
+```
+
+# Todo
+[ ] Making this Linux/Mac-Compatible
+[ ] Minecraft earlier than 1.16
+[ ] Tool to generate a gradle-project out of the code