Merge pull request #130 from shutter-network/fix/add-legacy-disclaimer

Add legacy disclaimer to the old Shutter repository

Author: ulope

README.md

@@ -1,5 +1,9 @@
 # Shutter
 
+> [!IMPORTANT]
+> This is a **legacy implementation**.
+> For the current version of Shutter, see [Rolling Shutter](https://github.com/shutter-network/rolling-shutter).
+
 This repository contains Shutter, a threshold encryption based frontrunning protection system for
 Ethereum smart contracts.