Add CI (#1)

* Add CI to run automatically on PR and push to main

* Add badges for CI and downloads

.github/workflows/node.js.yml

@@ -0,0 +1,30 @@
+# This workflow will do a clean installation of node dependencies, cache/restore them, 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: Node.js CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+      - run: npm install
+      - run: npm test

README.md

@@ -1,4 +1,7 @@
 # Obfuscation Detector
+[![Node.js CI](https://github.com/PerimeterX/obfuscation-detector/actions/workflows/node.js.yml/badge.svg?branch=main)](https://github.com/PerimeterX/obfuscation-detector/actions/workflows/node.js.yml)
+[![Downloads](https://img.shields.io/npm/dm/obfuscation-detector.svg?maxAge=43200)](https://www.npmjs.com/package/obfuscation-detector)
+
 Detect different types of JS obfuscation by their AST structure.
 
 ## Installation