feat(docs): switch docs to zensical (#125)

scripts/docs_prebuild.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+from pathlib import Path
+import shutil
+
+ROOT = Path(__file__).resolve().parents[1]
+SRC = ROOT / "changelog.md"
+DEST = ROOT / "docs" / "reference" / "changelog.md"
+
+
+def main() -> None:
+    DEST.parent.mkdir(parents=True, exist_ok=True)
+    if DEST.is_symlink():
+        DEST.unlink()
+    shutil.copyfile(SRC, DEST)
+
+
+if __name__ == "__main__":
+    main()