diff --git a/docs/opentrustee-guidelines/figures/ca-ta.png b/docs/opentrustee-guidelines/figures/ca-ta.png
new file mode 100644
index 0000000..37358f8
Binary files /dev/null and b/docs/opentrustee-guidelines/figures/ca-ta.png differ
diff --git a/docs/opentrustee-guidelines/opentrustee-develop-ta-guidelines.md b/docs/opentrustee-guidelines/opentrustee-develop-ta-guidelines.md
index 942be9c..d5ba0cc 100644
--- a/docs/opentrustee-guidelines/opentrustee-develop-ta-guidelines.md
+++ b/docs/opentrustee-guidelines/opentrustee-develop-ta-guidelines.md
@@ -70,6 +70,7 @@ OpenTrustee提供了SDK开发套件支持独立开发TA，该开发套件集成
 ##### 配置编译工具链
 
 OpenTrustee使用的编译工具链为llvm，与OpenHarmony一致。开发者需要先下载OpenHarmony编译工具链，并在编译环境中声明该编译工具链的路径。可通过如下命令声明编译工具链路径：
+
 export PATH=openharmony/prebuilts/clang/ohos/linux-x86_64/15.0.4/llvm/bin:$PATH
 
 此处仅是示例，开发者需要指定正确的编译工具链路径。