tweaked the readme

to say stuff about updating libsandstone

Author: x3n0ph0b3

Diff for: README.md

@@ -1,6 +1,14 @@
 Reliquary [![Build Status](https://drone.io/github.com/TrainerGuy22/Reliquary/status.png)](https://drone.io/github.com/TrainerGuy22/Reliquary/latest)
 =========
 
+Updating - Important!
+=========
+
+If you're using our drone.io to update the mod, don't forget to delete libSandstone.jar. No need to redownload, the mod does that automatically.
+
+Description
+=========
+
 The offical repository of Reliquary! That mod, with the magical swag, and a weapon, and stuff.
 
 Originally made by x3n0ph0b3, Reliquary is now developed by both TheMike and x3n0ph0b3.