diff --git a/addon/chrome/content/about.xul b/addon/chrome/content/about.xul
index 27c501b..9044d92 100644
--- a/addon/chrome/content/about.xul
+++ b/addon/chrome/content/about.xul
@@ -30,5 +30,11 @@
                 <label value="&zotero.__addonRef__.help.feedback.label;" class="zotero-text-link" onclick="Zotero.launchURL('__homepage__');" />
             </hbox>
         </hbox>
+        <hbox>
+            <label id="doc" value="&zotero.__addonRef__.help.doc.caption.label;" />
+            <hbox style="display: block">
+                <label value="&zotero.__addonRef__.help.doc.label;" class="zotero-text-link" onclick="Zotero.launchURL('https://zotero.yuque.com/books/share/f3fe159f-956c-4f10-ade3-c87559cacb60/biigg4');" />
+            </hbox>
+        </hbox>
     </vbox>
 </dialog>
\ No newline at end of file
diff --git a/addon/chrome/locale/en-US/overlay.dtd b/addon/chrome/locale/en-US/overlay.dtd
index 28c7468..c584fcf 100644
--- a/addon/chrome/locale/en-US/overlay.dtd
+++ b/addon/chrome/locale/en-US/overlay.dtd
@@ -106,5 +106,7 @@
 
 <!ENTITY zotero.__addonRef__.help.feedback.caption.label "User Guide and Feedback">
 <!ENTITY zotero.__addonRef__.help.feedback.label "GitHub">
+<!ENTITY zotero.__addonRef__.help.doc.caption.label "Documentations">
+<!ENTITY zotero.__addonRef__.help.doc.label "Better Notes Handbook(Chinese, provide translation)">
 <!ENTITY zotero.__addonRef__.help.version.label "VERSION __buildVersion__">
 <!ENTITY zotero.__addonRef__.help.releasetime.label "Build __buildTime__">
diff --git a/addon/chrome/locale/zh-CN/overlay.dtd b/addon/chrome/locale/zh-CN/overlay.dtd
index ccd9332..0b4d5d1 100644
--- a/addon/chrome/locale/zh-CN/overlay.dtd
+++ b/addon/chrome/locale/zh-CN/overlay.dtd
@@ -104,7 +104,9 @@
 <!ENTITY zotero.__addonRef__.template.reset.label "重置">
 <!ENTITY zotero.__addonRef__.template.more.label "获取更多模板">
 
-<!ENTITY zotero.__addonRef__.help.feedback.caption.label "User Guide and Feedback">
+<!ENTITY zotero.__addonRef__.help.feedback.caption.label "用户指引和反馈">
 <!ENTITY zotero.__addonRef__.help.feedback.label "GitHub">
+<!ENTITY zotero.__addonRef__.help.doc.caption.label "使用文档">
+<!ENTITY zotero.__addonRef__.help.doc.label "Better Notes手册(中文)">
 <!ENTITY zotero.__addonRef__.help.version.label "VERSION __buildVersion__">
 <!ENTITY zotero.__addonRef__.help.releasetime.label "Build __buildTime__">