diff --git a/GumpTechDocument.md b/GumpTechDocument.md
index f0c00c7..7126e41 100644
--- a/GumpTechDocument.md
+++ b/GumpTechDocument.md
@@ -3,8 +3,8 @@
 
 SDK下载地址
 -------------------------------
-Android SDK 下载地址：[click here]()      
-IOS SDk     下载地址：[click here]()     
+    Android SDK 下载地址：[click here]()      
+    IOS SDk     下载地址：[click here]()