diff --git "a/.gitlab/issue_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md" "b/.gitlab/issue_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md"
new file mode 100644
index 0000000000000000000000000000000000000000..a76d54967dab2b50e0de35b1d22497cf3c733cb9
--- /dev/null
+++ "b/.gitlab/issue_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md"
@@ -0,0 +1,23 @@
+## 贡献类型
+
+- [ ] 补充学习资料
+- [ ] 补充知识点
+
+> 填写说明：在对应类型的中括号/方括号中填上`x` 即可
+
+## 所属知识点
+
+- 阶段
+  - 一级知识点
+    - 二级知识点
+      - 三级知识点
+        - 四级知识点
+
+> 填写说明： 初阶/中阶/高阶 >> 一级知识点 >> 二级知识点 （依次类推）
+
+## 补充内容
+
++ 
++ 
+
+> 填写说明：填写补充知识点的名称或学习资料名称+链接，如果有多个知识点或学习资料补充，在补充内容中依次提交即可
diff --git "a/.gitlab/merge_request_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md" "b/.gitlab/merge_request_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md"
new file mode 100644
index 0000000000000000000000000000000000000000..25077da7193d148e8cd5102d737e9d20480a2e21
--- /dev/null
+++ "b/.gitlab/merge_request_templates/\346\210\221\350\246\201\350\264\241\347\214\256.md"
@@ -0,0 +1,16 @@
+## 贡献类型
+
+- [ ] 补充学习资料
+- [ ] 补充知识点
+
+> 填写说明：在对应类型的中括号/方括号中填上`x` 即可
+
+## 所属知识点
+
+- 阶段
+  - 一级知识点
+    - 二级知识点
+      - 三级知识点
+        - 四级知识点
+
+> 填写说明： 初阶/中阶/高阶 >> 一级知识点 >> 二级知识点 （依次类推）
\ No newline at end of file
diff --git a/config.toml b/config.toml
index 38b84cded4c9ebb226bebce753451a621f92f64e..05d03896fbf9f7837bb6a4f3be9cf2e9a93677f2 100644
--- a/config.toml
+++ b/config.toml
@@ -1,7 +1,7 @@
 baseURL = "https://codechina.gitcode.host/developer-roadmap/ai/intro/"
 #baseURL = "/"
 Languages = "zh-cn"
-title = "人工智能 - CSDN IT 人才成长路线图"
+title = '人工智能 - IT技术知识开源图谱'
 theme = ["dot","hugo-theme-pdf-js"]
 
 [markup.goldmark.renderer]
@@ -51,7 +51,7 @@ link = "https://codechina.csdn.net/codechina/developer-roadmap/ai/intro"
 
 # banner
 [params.banner]
-title = "CSDN IT 人才成长路线图"
+title = "IT技术知识开源图谱"
 subtitle = "人工智能技术路线图"
 bg_image = "images/banner.jpg"
 placeholder = "输入关键词"
@@ -165,28 +165,34 @@ hasChildren = true
 
 [[menu.main]]
 name = "CODE CHINA"
-url = "https://codechina.csdn.net/"
-weight = 6
+url = "https://codechina.csdn.net/dev-roadmap"
+weight = 7
 
 [[menu.main]]
 name = "我也要贡献"
-weight = 7
+weight = 6
 hasChildren = true
 
   [[menu.main]]
   parent = "我也要贡献"
   name = "我要补充学习资源"
-  url = ""
+  url = "https://codechina.csdn.net/codechina/developer-roadmap/ai/intro/-/issues"
   weight = 1
 
   [[menu.main]]
   parent = "我也要贡献"
   name = "我要补充领域"
-  url = ""
+  url = "https://codechina.csdn.net/dev-roadmap/dev-roadmap.gitcode.host/-/issues"
   weight = 2
 
   [[menu.main]]
   parent = "我也要贡献"
   name = "我要反馈建议"
-  url = ""
-  weight = 3
\ No newline at end of file
+  url = "https://codechina.csdn.net/codechina/developer-roadmap/ai/intro/-/issues"
+  weight = 3
+
+  [[menu.main]]
+  parent = "我也要贡献"
+  name = "如何参与贡献？"
+  url = "https://codechina.csdn.net/dev-roadmap/dev-roadmap.gitcode.host/-/blob/master/CONTRIBUTING.md"
+  weight = 4
\ No newline at end of file
diff --git a/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.html b/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.html
index 1730b09b752fa1447d001f0134f234ce28eece44..8fe2feeeba0641fa960b457d41b48f472297db35 100644
--- a/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.html
+++ b/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.html
@@ -218,9 +218,9 @@ See https://github.com/adobe-type-tools/cmap-resources
                   <span data-l10n-id="print_label">Print</span>
                 </button>
 
-                <button id="download" class="toolbarButton download hiddenMediumView" title="Download" tabindex="34" data-l10n-id="download">
-                  <span data-l10n-id="download_label">Download</span>
-                </button>
+                <!-- <button id="download" class="toolbarButton download hiddenMediumView" title="Download" tabindex="34" data-l10n-id="download">
+                  <span data-l10n-id="download_label">Download</span> 
+                </button>-->
                 <a href="#" id="viewBookmark" class="toolbarButton bookmark hiddenSmallView" title="Current view (copy or open in new window)" tabindex="35" data-l10n-id="bookmark">
                   <span data-l10n-id="bookmark_label">Current View</span>
                 </a>
diff --git a/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.js b/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.js
index 3cf8beed83ec79cf09cf6b970ad6f9bce98a700c..e726d77e48d28aec9441c4cbe669fb1f93f7a5d2 100644
--- a/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.js
+++ b/themes/hugo-theme-pdf-js/static/js/pdf-js/web/viewer.js
@@ -11558,6 +11558,7 @@ class Toolbar {
       element,
       eventName
     } of this.buttons) {
+      if(!element) return;
       element.addEventListener("click", evt => {
         if (eventName !== null) {
           this.eventBus.dispatch(eventName, {