Extend README

README.md

@@ -9,4 +9,10 @@ Run extended reth full node with the added rpc endpoint with:
 While there are no automated tests yet you can execute a manual test using the provided testdata:
 `curl --location 'localhost:8545/' --header 'Content-Type: application/json' --data @test/data/rpc_payload.json`
 
+## Further Reading
+- [Guide to custom api development based on reth](https://www.libevm.com/2023/09/01/reth-custom-api/)
+- [Official example for adding rpc namespace](https://github.com/paradigmxyz/reth/blob/main/examples/additional-rpc-namespace-in-cli/src/main.rs)
+
+
+