ci(gh-pages): preview website for PR builds in RTD (#3709)

gh-pages-template/.readthedocs.yaml

@@ -0,0 +1,25 @@
+---
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+version: 2
+
+build:
+  os: ubuntu-24.04
+  tools:
+    ruby: "3.3"
+  apt_packages:
+    - 7zip
+    - jq
+  jobs:
+    install:
+      - |
+        mkdir -p "./tmp"
+        branch="master"
+        base_url="https://raw.githubusercontent.com/LizardByte/LizardByte.github.io"
+        url="${base_url}/refs/heads/${branch}/scripts/readthedocs_build.sh"
+        curl -sSL -o "./tmp/readthedocs_build.sh" "${url}"
+        chmod +x "./tmp/readthedocs_build.sh"
+    build:
+      html:
+        - "./tmp/readthedocs_build.sh"