Add github action for public to docker hub and updated

Makefile

@@ -0,0 +1,10 @@
+DOCKER_IMAGE=cubetiq/highcharts-export-server
+
+build:
+	@echo 'Starting docker build'
+	docker build . -t ${DOCKER_IMAGE}
+
+	@echo 'Starting docker push'
+	docker push ${DOCKER_IMAGE}
+
+.PHONY:build