diff --git a/dev.html b/dev.html
index 7e0c59b..f41f01f 100644
--- a/dev.html
+++ b/dev.html
@@ -29,7 +29,7 @@
     loadSidebar: true,
     coverpage: true,
     name: 'docsify',
-    subMaxLevel: 0,
+    subMaxLevel: 2,
     mergeNavbar: true,
     formatUpdated: '{MM}/{DD} {HH}:{mm}',
     plugins: [
diff --git a/package-lock.json b/package-lock.json
index 46000de..8d04f26 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4661,6 +4661,11 @@
       "integrity": "sha1-OTvnMKlEb9Hq1tpZoBQwjzbCics=",
       "dev": true
     },
+    "tweezer.js": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/tweezer.js/-/tweezer.js-1.4.0.tgz",
+      "integrity": "sha1-IG/1aK00zw5WoEMH2Z/8Uhk9UEU="
+    },
     "type-check": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",