docs: update indexer-service run command in readme

Author: shiyasmohd

README.md

@@ -15,9 +15,9 @@ A Rust impl for The Graph [indexer service](https://github.com/graphprotocol/ind
 ## Quick start
 
 ```txt
-$ cargo run -p service -- --help
+$ cargo run -p indexer-service-rs -- --help
 
-Usage: service --config <FILE>
+Usage: indexer-service-rs --config <FILE>
 
 Options:
       --config <FILE>  Path to the configuration file.