docs: update roadmap (as of 20240314)

Some new items are listed here.

Signed-off-by: Gao Xiang <xiang@kernel.org>

src/roadmap.md

@@ -2,13 +2,19 @@
 
 ## Linux Kernel
 
- - [Sub-page block size support of compressed files](https://git.kernel.org/torvalds/c/0ee3a0d59e00);
+ - [Compressed data support over fscache](https://lore.kernel.org/r/20240308094159.40547-1-jefflexu@linux.alibaba.com);
 
- - [Support fscache daemon failover mechanism to recover from crashing](https://git.kernel.org/torvalds/c/26458409a9b1).
+ - Enable Large folio support for compressed data [\[1\]](https://lore.kernel.org/r/20240305091448.1384242-1-hsiangkao@linux.alibaba.com);
+
+ - Intel QAT/IAA accelerator support;
+
+ - Zstandard decompressor support;
+
+ - Preliminary EROFS Rust in-kernel adaption (EXPERIMENTAL, program for students).
 
 ## Userspace tools (erofs-utils)
 
- - Multi-threaded (de)compression;
+ - [Multi-threaded (de)compression](https://lore.kernel.org/r/20240228161652.1010997-1-zhaoyifan@sjtu.edu.cn);
 
  - Intel QAT/IAA accelerator support;