Replace travis with github actions for testing

.github/workflows/testing.yml

@@ -0,0 +1,29 @@
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: "Run Automated Tests"
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x, 16.x]
+    steps:
+      - name: Checkout code 🛎️
+        uses: actions/checkout@v2
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies and run tests
+        run: |
+          npm ci
+          npm test

.npmignore

@@ -1,2 +1 @@
 .idea
-.travis.yml

README.md

@@ -1,7 +1,6 @@
 # customizr
 
-[![Build Status](https://api.travis-ci.org/Modernizr/customizr.png?branch=master,develop)](https://travis-ci.org/Modernizr/customizr)
-
+[![Build Status](https://github.com/Modernizr/customizr/actions/workflows/testing.yml/badge.svg)](https://github.com/Modernizr/customizr/actions/workflows/testing.yml)
 [![NPM](https://nodei.co/npm/customizr.png?compact=true)](https://nodei.co/npm/customizr/)
 
 ##### *tl;dr:* This tool crawls through your project files, gathers up your references to Modernizr tests and outputs a lean, mean Modernizr machine.