doc: update copyonwritelist doc

docs/datastructure/copyonwritelist.md

@@ -1,7 +1,6 @@
 # CopyOnWriteList
 
-CopyOnWriteList is a thread-safe list implementation that uses go slicing as its base.
-. When writing, a new slice is copied and assigned to the original slice when writing is complete.When reading, the original slice is read directly.
+CopyOnWriteList is a thread-safe list implementation that uses go slicing as its base. When writing, a new slice is copied and assigned to the original slice when writing is complete. When reading, the original slice is read directly.
 
 ## 源码
 

docs/datastructure/copyonwritelist_zh-CN.md

@@ -1,8 +1,6 @@
 # CopyOnWriteList
 
-CopyOnWriteList 是一个线程安全的 List 实现，底层使用 go 切片
-.在写入时，会复制一份新的切片，写入完成后，再将新的切片赋值给原来的切片.
-在读取时，直接读取原来的切片
+CopyOnWriteList 是一个线程安全的 List 实现，底层使用 go 切片。写入时，会复制一份新的切片，写入完成后，再将新的切片赋值给原来的切片。读取时，直接读取原来的切片。
 
 ## 源码