fix: fix documentation url

Author: Josen-B

Cargo.toml

@@ -6,7 +6,7 @@ description = "A lightweight ext4 file system."
 authors = ["Dirinkbottle <2909128143@qq.com>"]
 repository = "https://github.com/Starry-OS/rsext4"
 homepage = "https://github.com/Starry-OS/rsext4"
-documentation = "https://docs.rs/rsext4"
+documentation = "https://starry-os.github.io/rsext4/"
 license = "GPL-3.0-or-later OR Apache-2.0 OR MIT"
 readme = "README.md"
 keywords = ["ext4", "filesystem", "rust"]