first commit.

scripts/npm-start.js

@@ -0,0 +1,16 @@
+/* eslint-env node */
+'use strict';
+
+const runAll = require('npm-run-all');
+
+runAll(['develop', 'upload'], {
+  parallel: true,
+  stdout: process.stdout,
+  stdin: process.stdin,
+}).catch(({ results }) => {
+  results
+    .filter(({ code }) => code)
+    .forEach(({ name }) => {
+      console.log(`"npm run ${name}" was failed`);
+    });
+});