add github build action

.github/workflows/build.yml

@@ -0,0 +1,15 @@
+name: Build
+on: push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v2
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 'stable'
+    - name: Build
+      run: go build -v
+