Minor readme improvement

Author: shock59

README.md

@@ -4,6 +4,8 @@ makemcserver is a CLI tool which can be used to easily set up a Minecraft server
 
 ## Usage
 
+You need [Node.js](https://nodejs.org/) installed to use the tool. To set up a NeoForge or Forge server, you will also need Java installed, which you can get from [Adoptium](https://adoptium.net/) or other providers.
+
 Run `npx makemcserver` in the terminal/command prompt.
 
 ## Configuration