use GA

.github/workflows/actions.yml

@@ -0,0 +1,23 @@
+name: CI
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    services:
+      mysql:
+        image: mysql
+    strategy:
+      matrix:
+        ruby: [ '2.5', '2.6', '2.7' ]
+    name: ${{ matrix.ruby }} rake ${{ matrix.task }}
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - run: bundle exec rake