Add GitHub Actions CI workflow for troubleshooting

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.9'
+
+    - name: Install dependencies
+      run: |
+        python -m venv venv
+        source venv/bin/activate
+        pip install --upgrade pip
+        pip install -r requirements.txt
+
+    - name: Run Streamlit application
+      run: |
+        source venv/bin/activate
+        streamlit run app.py --logger.level=debug > output.log 2>&1
+
+    - name: Display output log
+      run: cat output.log