diff --git a/theme/style3.css b/theme/style3.css
index eacea892..acf81bc9 100644
--- a/theme/style3.css
+++ b/theme/style3.css
@@ -105,4 +105,4 @@ code {
     background-color: #99CCFF;
     height: 2px;
     margin-top: 8px;
-}
\ No newline at end of file
+}
diff --git a/内容变更记录.md b/内容变更记录.md
index 1cd8c8f0..babd272c 100644
--- a/内容变更记录.md
+++ b/内容变更记录.md
@@ -1,6 +1,10 @@
 # ChangeLog
 记录一些值得注意的变更。
 
+## 2022-04-05
+
+- 新增章节：[Cookbook - 字符编码](https://cookbook.rs/encoding/strings.html)
+
 ## 2022-04-04 
 
 - 新增章节: [Cookbook - 使用 rayon 并行处理数据](https://course.rs/cookbook/cocurrency/parallel.html)