Switch from circleci to github actions

.github/workflows/workflow.yml

@@ -0,0 +1,27 @@
+name: Main Workflow
+
+on: [push, pull_request]
+
+jobs:
+  run:
+    name: Run
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@master
+
+      - name: Set Node.js 10.x
+        uses: actions/setup-node@master
+        with:
+          node-version: 10.x
+
+      - name: Install
+        run: npm ci && cd dev && npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Test
+        run: npm test

package.json

@@ -14,6 +14,7 @@
 		"watch": "rollup -c --watch",
 		"pretest": "cd dev && npm install",
 		"test": "ava",
+		"lint": "",
 		"test:update": "ava --update-snapshots",
 		"test:watch": "ava --watch",
 		"prettier:check": "prettier --list-different \"src/**/*.{ts,tsx}\"",