diff --git a/cg/ct.md b/cg/ct.md
index fabda0b..7588b2d 100644
--- a/cg/ct.md
+++ b/cg/ct.md
@@ -15,4 +15,7 @@ WADO:Web Access to DICOM Objects
 - [DCMTK is a collection of libraries and applications implementing large parts the DICOM standard](https://dcmtk.org/dcmtk.php.en)
 - [DCMTK github](https://github.com/DCMTK/dcmtk)
 
-- [WADO Server 测试网站](https://www.dicomserver.co.uk//WADO/)
\ No newline at end of file
+- [WADO Server 测试网站](https://www.dicomserver.co.uk//WADO/)
+
+- [itk-document](https://docs.itk.org/en/latest/learn/faq.html#how-do-i-read-a-volume-from-a-dicom-series)
+    - [itk-wasm document](https://wasm.itk.org/en/latest/typescript/distribution/vite.html)
\ No newline at end of file
diff --git a/html/index.html b/html/index.html
index f107b3c..ccbbe2d 100644
--- a/html/index.html
+++ b/html/index.html
@@ -11,15 +11,16 @@
       <div class="m-3">
         <h4>Mathjax latex Article</h4>
         <p><a href="./transform.html">Transform</a></p>
-        <p></p><a href="./pbr3ed.html">PBR -- Physically Based Rendering online book</a></p>
-        <p></p><a href="./pbr.html">PBR -- Physically Based Rendering</a></p>
-        <p></p><a href="./algebra.html">algebra</a></p>
-        <p></p><a href="./gpu.html">GPU</a></p>
+        <p><a href="./pbr3ed.html">PBR -- Physically Based Rendering online book</a></p>
+        <p><a href="./pbr.html">PBR -- Physically Based Rendering</a></p>
+        <p><a href="./algebra.html">algebra</a></p>
+        <p><a href="./gpu.html">GPU</a></p>
+        <p><a href="./lighting.html">局部光照</a></p>
       </div>
       <div class="m-3">
         <h4>其他内容</h4>
-        <p></p><a href="./personal.html">个人</a></p>
-        <p></p><a href="./pinyin.html">拼音</a></p>
+        <p><a href="./personal.html">个人</a></p>
+        <p><a href="./pinyin.html">拼音</a></p>
       </div>
     </section>
   </body>
diff --git a/nodejs/npm.md b/nodejs/npm.md
index f12964c..a493e05 100644
--- a/nodejs/npm.md
+++ b/nodejs/npm.md
@@ -9,7 +9,9 @@ node --harmony script.js --version --help
 npm init
 vim index.js 
 node index.js
-npm init -w ./packages/a 创建子包
+npm init -w ./packages/a // 创建子包
+npm install libraryX --workspace packages/pA // 子工作区按照特定依赖
+npm i libraryX -w packages/pA
 ```
 
 包管理