Add CI Pipeline for automated testing

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libxml2-dev libxslt-dev
+
+      - name: Install dependencies from source
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Execute test command from source
+        run: |
+          python3 lightyear.py --help

README.md

@@ -10,6 +10,13 @@ get_image_size($_GET['image']);
 
 ## Setup
 
+The following dependencies are required to build the XML library (lxml).
+
+```bash
+sudo apt update
+sudo apt-get install -y libxml2-dev libxslt-dev
+```
+
 ```bash
 $ git clone https://github.com/ambionics/lightyear
 $ cd lightyear