Add Github CI (#1)

.github/workflows/go.yml

@@ -0,0 +1,24 @@
+name: Go
+
+on: [ push, pull_request ]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.15
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: go mod download
+
+    - name: Test
+      run: go test -v .