add github action (#63)

* add github action

Author: huiwang

.github/workflows/ci.yml

@@ -0,0 +1,11 @@
+name: CI
+on:
+  push:
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: olafurpg/setup-scala@v5
+      - name: Test
+        run: sbt test

.gitlab-ci.yml

@@ -1,6 +1,3 @@
-[![Build Status](https://travis-ci.org/huiwang/codingame-scala-kit.svg?branch=master)](https://travis-ci.org/huiwang/codingame-scala-kit)
-[![Gitter](https://badges.gitter.im/TrueLaurel/CodinGame-Scala-Kit.svg)](https://gitter.im/TrueLaurel/CodinGame-Scala-Kit?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
-
 # CodinGame Scala Kit
 I love Both CodinGame and Scala because they make programming fun.