Create ci.yaml

.github/workflows/ci.yaml

@@ -0,0 +1,20 @@
+name: C++ CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install dependencies
+      run: sudo apt-get update && sudo apt-get install -y libx11-dev
+
+    - name: Compile program
+      run: g++ -o night-vision night-vision.cpp -lX11