add github action to run tests

.github/workflows/main.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: '1.19'
+
+      - name: Run build
+        run: go build .
+
+      - name: Run vet & lint
+        run: |
+          go vet .
+
+      - name: Run tests
+        run: go test -v ./...