Add [Spigot-5294] to readme

Author: P3ridot

README.md

@@ -63,6 +63,7 @@ Titanium implements patches from other engines as well. **All credits go to the
 ```
 [Spigot-0138] Branchless NibbleArray by md5
 [Spigot-2380] Hitting in the air will always load the chunk at 0,0 by md_5
+[Spigot-5294] Cancelled EntityPickupItemEvent and PlayerPickupItemEvent alter on-ground stacks by md_5
 [Spigot-5428] Better handling of some ItemMeta by Mathias
 
 [Paper-0008/0013] Add command line option to load extra plugin jars not in the plugins folder by Jason Penilla