[ci skip] Add more identifying patch comments

patches/server/Add-PlayerPickItemEvent.patch

@@ -13,7 +13,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              return;
          }
 -        this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
-         // Paper end
+         // Paper end - validate pick item position
 +        // Paper start - Add PlayerPickItemEvent
 +        Player bukkitPlayer = this.player.getBukkitEntity();
 +        int targetSlot = this.player.getInventory().getSuitableHotbarSlot();