add workflow

.github/workflows/main.yml

@@ -0,0 +1,10 @@
+name: xo-install test
+on: [push, pull_request]
+jobs:
+  Test-Install:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: xo-install run
+        run: sudo ./xo-install.sh --install
+        shell: bash