Update README.md

Author: tonymeehan

README.md

@@ -3,5 +3,5 @@
 ```sh
 helm repo add prequel https://prequel-dev.github.io/helm
 helm search repo prequel
-helm -n prequel install my-prequel prequel/prequel-collector --set api.token="<your-prequel-api-token>"
+helm -n prequel install my-prequel prequel/prequel-collector --set token="<your-prequel-api-token>"
 ```