feat: TOC plugin

lucifer · lucifer · commit 3c4bdb0226cc · 2020-10-15T18:55:26.000+08:00
diff --git a/book.json b/book.json
@@ -1,5 +1,7 @@
 {
-    "structure": {
-        "readme": "introduction.md"
-    }
-}
+  "structure": {
+    "readme": "introduction.md"
+  },
+
+  "plugins": ["page-toc"]
+}
