add update-config target

Author: jpinsonneau

Makefile

@@ -144,6 +144,10 @@ endif
 generate-doc: ## Generate documentation of the flows JSON format
 	cd web && npm run generate-doc
 
+.PHONY: update-config
+update-config: ## Update sample config from operator repo
+	./scripts/update-config.sh
+
 ##@ Develop frontend
 
 .PHONY: install-frontend