Streamline Makefile, making local_art directory a volume mount instead of a COPY

Makefile

@@ -1,2 +1,19 @@
+.PHONY: start stop
+
 start:
-	docker build -f Dockerfile --target "prod" . -t "cardconjurer-client" && docker run -dit -h 127.0.0.1 -p 4242:4242 "cardconjurer-client"
+	docker build \
+		--file Dockerfile \
+		--target "prod" \
+		--tag "cardconjurer-client" \
+		. && \
+	docker run \
+		--detach \
+		--hostname 127.0.0.1 \
+		--publish 4242:4242 \
+		--name cardconjurer-client \
+		--volume ./:/usr/share/nginx/html/:ro \
+		"cardconjurer-client"
+
+stop:
+	docker stop cardconjurer-client && \
+	docker rm cardconjurer-client