Add note about Opacity X-Ray not working with Sodium

src/main/java/net/wurstclient/hacks/XRayHack.java

@@ -85,6 +85,7 @@ public final class XRayHack extends Hack implements UpdateListener,
 
 	private final SliderSetting opacity = new SliderSetting("Opacity",
 		"Opacity of non-ore blocks when X-Ray is enabled.\n\n"
+			+ "Does not work when Sodium is installed.\n\n"
 			+ "Remember to restart X-Ray when changing this setting.",
 		0, 0, 0.99, 0.01, ValueDisplay.PERCENTAGE.withLabel(0, "off"));