Add Read the Docs configuration

.github/workflows/rtd-preview.yml

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+name: Read the Docs PR preview
+on:
+  pull_request_target:
+    types:
+      - opened
+
+permissions:
+  pull-requests: write
+
+jobs:
+  documentation-links:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: readthedocs/actions/preview@v1
+        with:
+          project-slug: "ep-website-demo"
+          single-version: "true"
+          message-template: "🖼️ Preview available 🖼️ : {docs-pr-index-url}"

.readthedocs.yaml

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+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the OS, Python version, and other tools you might need
+build:
+  os: ubuntu-24.04
+  tools:
+    # Specify the language and version your project requires,
+    # by uncommenting one of the following tools.
+    #
+    # python: "3.13"
+    # ruby: "3.3"
+    nodejs: "22"
+    # rust: "1.82"
+    # golang: "1.23"
+
+  commands:
+    - npm install -g pnpm@latest-10
+    - make install
+    - make build PREVIEW=true
+    - mkdir -p $READTHEDOCS_OUTPUT/html
+    - cd dist && cp -r * $READTHEDOCS_OUTPUT/html