Add to compile command

README.md

@@ -4,6 +4,10 @@ Major and minor tweaks to Minecraft's recipes, loot tables and item data with pr
 
 This mod does *not* change the difficulty of the game. 
 
+To compile, use: <pre>./gradlew build</pre>
+
+Remember to change the JDK version to a compatible version, ie.: <pre>-Dorg.gradle.java.home=/usr/lib/jvm/java-21-openjdk</pre>
+
 ## Vanilla changes
 
 - Removes wooden tools, there is now only a wooden paxel