Updating README to include sunsetting note

README.md

@@ -1,3 +1,5 @@
+> :warning: **The Truffle Suite is being sunset. For information on ongoing support, migration options and FAQs, visit the [Consensys blog](https://consensys.io/blog/consensys-announces-the-sunset-of-truffle-and-ganache-and-new-hardhat?utm_source=github&utm_medium=referral&utm_campaign=2023_Sep_truffle-sunset-2023_announcement_). Thank you for all the support over the years.**
+
 <img src="https://trufflesuite.com/img/truffle-logo-dark.svg" width="200">
 
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