update README.md

README.md

@@ -64,9 +64,9 @@ grub==2.06
 
 - [ ] 多核调度及负载均衡
 
-- [ ] FAT32文件系统
+- [x] FAT32文件系统
 
-- [ ] VFS虚拟文件系统
+- [x] VFS虚拟文件系统
 
 - [ ] 解析ELF文件格式
 

README_EN.md

@@ -64,9 +64,9 @@ grub==2.06
 
 - [ ] Multi core scheduling and load balancing
 
-- [ ] FAT32 file system
+- [x] FAT32 file system
 
-- [ ] virtual file system
+- [x] virtual file system
 
 - [ ] Parsing ELF file format