mention user docs in readme

MasterHW · thelostone-mc · commit d858ffcf13c8 · 2024-06-19T07:57:23.000+05:30
diff --git a/README.md b/README.md
@@ -4,6 +4,8 @@ The Grants Stack Indexer is a tool that indexes blockchain events generated by [
 
 The indexer data is used by [Grants Stack](https://github.com/gitcoinco/grants-stack) as a data layer.
 
+Indexer user docs featuring [sample queries](https://docs.allo.gitcoin.co/indexer/application) can be found at [docs.allo.gitcoin.co](https://docs.allo.gitcoin.co/indexer).
+
 ## API
 
 Access indexed data through the GraphQL endpoint at:
