readme update chunking feature item

Author: Fallen-Breath

README.md

@@ -9,7 +9,7 @@ Document: https://tisunion.github.io/PrimeBackup/
 ## Features
 
 - Hash-based, compressed file pool deduplication. Only new or changed data is stored, with no hard limit on backup count
-- Optional CDC (content-defined chunking) for large, locally edited files to improve deduplication across backups
+- Optional blob chunking algorithm. Supports CDC (content-defined chunking) for large, locally edited files to improve deduplication across backups
 - Safe restore workflow: confirmation + countdown, automatic pre-restore backup, recycle-bin rollback, and data verification
 - Comprehensive backup operations, including backup/restore, list/delete, import/export, comments/tags, etc.
 - Smooth in-game interaction, with most operations achievable through mouse clicks

README.zh.md

@@ -9,7 +9,7 @@
 ## 功能特性
 
 - 基于哈希的文件池与压缩去重：仅存储新增或变更的数据，备份数量没有上限
-- 可选的 CDC（Content-Defined Chunking，内容定义分块）分块存储：适用于大文件的局部编辑场景，能显著提升跨备份的去重效果
+- 可选的数据分块存储算法。支持使用 CDC（Content-Defined Chunking，内容定义分块）分块，适用于大文件的局部编辑场景，能显著提升跨备份的去重效果
 - 安全的回档流程：包含确认与倒计时、回档前自动创建备份、回收站式的回滚机制以及数据完整性校验
 - 完善的备份操作，包括备份回档、展示删除、导入导出等
 - 流畅的游戏内交互，大部分操作都能点点点