Add disclaimer (#511)

Author: MichaelMacaulay

website/pages/en/mips-faqs.mdx

@@ -4,6 +4,8 @@ title: MIPs FAQs
 
 ## Introduction
 
+> Note: the MIPs program is closed as of May 2023. Thank you to all the Indexers who participated!
+
 It's an exciting time to be participating in The Graph ecosystem! During [Graph Day 2022](https://thegraph.com/graph-day/2022/) Yaniv Tal announced the [sunsetting of the hosted service](https://thegraph.com/blog/sunsetting-hosted-service/), a moment The Graph ecosystem has been working towards for many years.
 
 To support the sunsetting of the hosted service and the migration of all of it's activity to the decentralized network, The Graph Foundation has announced the [Migration Infrastructure Providers (MIPs) program](https://thegraph.com/blog/mips-multi-chain-indexing-incentivized-program).