Migrate CI to GitHub actions

Author: m90

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version:
+          - '12'
+          - '14'
+          - '16'
+    steps:
+     - uses: actions/checkout@v2
+     - uses: actions/setup-node@v2
+       with:
+         node-version: ${{ matrix.node-version }}
+     - name: Install dependencies
+       run: npm ci
+     - name: Run tests
+       run: npm t

.travis.yml

@@ -2,7 +2,7 @@
 
 > TDD with Browserify, Mocha, Headless Chrome and WebDriver
 
-[![Build Status](https://travis-ci.org/mantoni/mochify.js.svg?branch=master)](https://travis-ci.org/mantoni/mochify.js)
+[![Build](https://github.com/mantoni/mochify.js/actions/workflows/test.yml/badge.svg)](https://github.com/mantoni/mochify.js/actions/workflows/test.yml)
 [![SemVer]](http://semver.org)
 [![License]](https://github.com/mantoni/mochify.js/blob/master/LICENSE)