diff --git a/doc/codepush.md b/doc/codepush.md
index 91b51c87c..377f6ebdb 100644
--- a/doc/codepush.md
+++ b/doc/codepush.md
@@ -58,8 +58,8 @@
 
    The default behaviour will upload it in Staging env
 
-   ![code](./Asset/code_push_1.png)
+   ![code](./asset/code_push_1.png)
 
 6. Move staging to production
 
-   ![code2](./Asset/code_push_2.png)
\ No newline at end of file
+   ![code2](./asset/code_push_2.png)
\ No newline at end of file
diff --git a/doc/icon.md b/doc/icon.md
index ef8b0368f..e79e372f6 100644
--- a/doc/icon.md
+++ b/doc/icon.md
@@ -1,10 +1,10 @@
 # Icon configuration
 
-For common, we are using **[iconfont.cn](https://www.iconfont.cn/) ** to manage icon and **[react-native-iconfont-cli](https://github.com/iconfont-cli/react-native-iconfont-cli)** to generate icon.
+For common, we are using **[iconfont.cn](https://www.iconfont.cn/)** to manage icon and **[react-native-iconfont-cli](https://github.com/iconfont-cli/react-native-iconfont-cli)** to generate icon.
 
 The full icon set locate in my project in iconfont, the js link represent everything. 
 
-![place](./Asset/icon_doc_1.png)
+![place](./asset/icon_doc_1.png)
 
 ## Add or update new icon
 
@@ -14,19 +14,19 @@ Js link need to be regenerate everytime when the new icon is added or updated.
 
 You can upload new icons using following button.
 
-![icon_doc_2](./Asset/icon_doc_3.png)
+![icon_doc_2](./asset/icon_doc_3.png)
 
 #### 2. Regenerate new link
 
 Once the icon set have been changed or updated, it will have a warning text above current js link, it will ask to regenerate new JS link after you click it. 
 
-![icon_doc](./Asset/icon_doc_4.png)
+![icon_doc](./asset/icon_doc_4.png)
 
 #### 3. Updated local link
 
 Then you will need update local js link which locate in `./iconfont.js`.
 
-![icon_doc_3](./Asset/icon_doc_2.png)
+![icon_doc_3](./asset/icon_doc_2.png)
 
 #### 4. Regenerate the icons
 
@@ -36,4 +36,4 @@ There is command to regenerate the icon
 yarn icon
 ```
 
-![icon_doc](./Asset/icon_doc_5.png)
\ No newline at end of file
+![icon_doc](./asset/icon_doc_5.png)