diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index 4001f7c..578a09f 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -3,7 +3,7 @@
 * [Introduction](README.md)
 * [What it does](what_it_does.md)
 * [Installation](installation.md)
-* API Reference
+* [API Reference](javascript.md)
   * [javascript](javascript.md)
   * [chai](chai.md)
   * [expect](expect.md)
diff --git a/docs/book.json b/docs/book.json
new file mode 100644
index 0000000..f3c2271
--- /dev/null
+++ b/docs/book.json
@@ -0,0 +1,14 @@
+{
+  "links": {
+    "home": null,
+    "about": false,
+    "issues": "https://github.com/dmitry-zaets/redux-actions-assertions/issues",
+    "contribute": false,
+    "sharing": {
+      "google": false,
+      "facebook": false,
+      "twitter": false,
+      "website": false
+    }
+  }
+}
\ No newline at end of file
diff --git a/docs/expectjs.md b/docs/expectjs.md
index 5ce9850..573c07a 100644
--- a/docs/expectjs.md
+++ b/docs/expectjs.md
@@ -1,6 +1,6 @@
-## [expect.js](https://github.com/Automattic/expect.js)
+# [expect.js](https://github.com/Automattic/expect.js)
 
-### Registration
+## Registration
 
 ```js
 // using ES6 modules