Cleanup makefile and update readme

Makefile

@@ -1,29 +1,5 @@
 graphite:
-	@echo "Building Carbon"
-	docker build -t localhots/carbon:v1 -f Carbon.dockerfile .
-	@echo "Starting Carbon"
-	docker run -d --name carbon \
-		-p 2003:2003 \
-		-p 2004:2004 \
-		-p 7002:7002 \
-		-v /data/graphite/whisper /var/whisper \
-		localhots/carbon:v1
-
-	@echo "Building Brubeck"
-	docker build -t localhots/brubeck:v1 -f Brubeck.dockerfile .
-	@echo "Starting Brubeck"
-	docker run -d --name brubeck --link carbon:carbon \
-		-p 8080:8080 \
-		-p 8126:8126 \
-		-p 9126:9126 \
-		localhots/brubeck:v1
-
-	@echo "Building Grafana"
-	docker build -t localhots/grafana:v1 -f Grafana.dockerfile .
-	@echo "Starting Grafana"
-	docker run -d --name grafana --link carbon:carbon --link brubeck:brubeck \
-		-p 3000:3000 \
-		localhots/grafana:v1
+	docker-compose build .
 
 fast:
 	@echo "Graphite is fast now!"