Add run-tests.yml

- Add CI/CD script

.github/workflows/run-tests.yml

@@ -0,0 +1,30 @@
+name: CI/CD
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up CMake
+        uses: actions/setup-cmake@v1
+        with:
+          cmake-version: '3.21'
+
+      - name: Build and test
+        run: |
+          mkdir build
+          cd build
+          cmake ..
+          cmake --build .
+          ctest