diff --git a/docs/book.json b/docs/book.json
new file mode 100644
index 0000000..388b9e5
--- /dev/null
+++ b/docs/book.json
@@ -0,0 +1,8 @@
+{
+  "title": "CORD Guide",
+  "root": ".",
+  "structure": {
+    "summary": "SUMMARY.md"
+  },
+  "plugins": ["toggle-chapters"]
+}