Add travis. (GoogleChrome#496)

.travis.yml

@@ -0,0 +1,12 @@
+language: node_js
+node_js:
+  - "10"
+sudo: false
+dist: trusty
+git:
+  depth: 1
+cache:
+  directories:
+  - node_modules
+script:
+- npm run build

README.md

@@ -1,5 +1,7 @@
 # web.dev
 
+[![Build Status](https://travis-ci.org/GoogleChrome/web.dev.svg?branch=master)](https://travis-ci.org/GoogleChrome/web.dev)
+
 web.dev is the ultimate resource for developers of all backgrounds to learn, create, and solve on the web. It's meant to not only educate developers, but help them apply what they've learned to any site they work on, be it personal or business.
 
 ## Cloning the repo

package.json

@@ -1,11 +1,14 @@
 {
   "name": "web.dev",
-  "version": "0.0.1",
+  "version": "0.1.0",
   "description": "web.dev content and build tools",
   "repository": "https://github.com/GoogleChrome/web.dev.git",
   "author": "The Chromium Authors",
   "license": "Apache-2.0",
   "private": true,
+  "engines": {
+    "node": ">=10"
+  },
   "scripts": {
     "build": "./lib/index.js",
     "deploy": "./lib/index.js --deploy"