.github: add translate workflow

.github/workflows/readme.yml

@@ -0,0 +1,42 @@
+name: Translate README
+
+on:
+  push:
+    branches:
+      - 3.2.4
+    paths:
+      - 'README-de.md'
+
+permissions:
+  contents: write
+
+jobs:
+  translate:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.x
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install --upgrade googletrans==3.1.0a0
+
+    - name: Translate README
+      run: |
+        python .github/scripts/translate.py
+
+    - name: Commit and push translated README
+      run: |
+        git config --global user.email "actions@github.com"
+        git config --global user.name "GitHub Actions"
+        git add README-en.md
+        git commit -m "readme: Automatically translated README to English"
+        git push
+