diff --git a/SUMMARY.md b/SUMMARY.md
index 41fb7a5..58320c1 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -37,8 +37,8 @@
    * [3.12. AVX/SSE/JIT高级优化(TODO)](ch3-asm/ch3-12-avx-sse-jit.md)
    * [3.13. ARM汇编(TODO)](ch3-asm/ch3-13-arm.md)
    * [3.14. 补充说明(TODO)](ch3-asm/ch3-14-faq.md)
-* [第四章 移动平台(TODO)](ch4-mobile/readme.md)
-* [第五章 这是一个坑(TODO)](ch5-wtf/readme.md)
+* [第四章 Go&JS编程(TODO)](ch4-js/readme.md)
+* [第五章 移动平台(TODO)](ch5-mobile/readme.md)
 * [第六章 Go和Web](ch6-web/readme.md)
    * [6.1. Web开发简介](ch6-web/ch6-01-introduction.md)
    * [6.2. Router请求路由](ch6-web/ch6-02-router.md)
diff --git a/ch4-js/readme.md b/ch4-js/readme.md
new file mode 100644
index 0000000..40fc5cc
--- /dev/null
+++ b/ch4-js/readme.md
@@ -0,0 +1,3 @@
+# 第四章 Go&JS编程
+
+TODO
diff --git a/ch4-mobile/readme.md b/ch4-mobile/readme.md
deleted file mode 100644
index e874579..0000000
--- a/ch4-mobile/readme.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# 第四章 移动平台
-
-TODO
diff --git a/ch5-mobile/readme.md b/ch5-mobile/readme.md
new file mode 100644
index 0000000..725ee1e
--- /dev/null
+++ b/ch5-mobile/readme.md
@@ -0,0 +1,3 @@
+# 第五章 移动平台
+
+TODO