[CI/CD] added pipeline

.github/workflows/main.yml

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+name: How To Compile Your Language Pipeline
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+env:
+  BUILD_TYPE: Debug
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_CXX_FLAGS="-g -O0 --coverage -fprofile-arcs -ftest-coverage" -DCMAKE_C_FLAGS="-g -O0 --coverage -fprofile-arcs -ftest-coverage"
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+
+    - name: Test
+      working-directory: ${{github.workspace}}/build
+      run: |
+        pip install lit filecheck
+        cmake --build . -t test
+
+    - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v4.0.1
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}

README.MD

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+[![codecov](https://codecov.io/github/isuckatcs/how-to-compile-your-language/branch/main/graph/badge.svg?token=SLOD84JALB)](https://codecov.io/github/isuckatcs/how-to-compile-your-language)