Update README.md

README.md

@@ -307,12 +307,11 @@ docker run --rm -p 8083:8083 -p 8093:8093 \
 target for `--mount` options.
 
 ## Scraping a prometheus instance
-It's possible to scrape an existing prometheus server using the /federate endpoint. 
-This enables using the existing service discovery features already built into prometheus. 
+It's possible to scrape an existing prometheus server using the `/federate` endpoint. 
+This enables using the existing service discovery features already built into Prometheus. 
 
 An example config can be found in
-[federate.conf](https://raw.githubusercontent.com/pambrose/prometheus-proxy/master/examples/federate.conf)
-
+[federate.conf](https://github.com/pambrose/prometheus-proxy/blob/master/examples/federate.conf).
 
 ## Grafana
 
@@ -323,4 +322,4 @@ are [here](https://github.com/pambrose/prometheus-proxy/tree/master/grafana).
 
 * [Prometheus.io](http://prometheus.io)
 * [gRPC](http://grpc.io)
-* [Typesafe Config](https://github.com/typesafehub/config)
+* [Typesafe Config](https://github.com/typesafehub/config)