diff --git a/README.md b/README.md
index 497c986e..30e5b730 100644
--- a/README.md
+++ b/README.md
@@ -192,6 +192,7 @@ fn main() {
 - [Work Steal Overview](core/docs/en/work-steal.md)
 - [Ordered Work Steal Overview](core/docs/en/ordered-work-steal.md)
 - [Coroutine Pool Overview](core/docs/en/coroutine-pool.md)
+- [Hook Overview](hook/docs/en/hook.md)
 
 [我有故事,你有酒吗?](https://github.com/acl-dev/open-coroutine-docs)
 
diff --git a/core/docs/en/coroutine-pool.md b/core/docs/en/coroutine-pool.md
index 6d5bb33d..7664f366 100644
--- a/core/docs/en/coroutine-pool.md
+++ b/core/docs/en/coroutine-pool.md
@@ -15,7 +15,7 @@ fn main() -> std::io::Result<()> {
     let mut pool = CoroutinePool::default();
     assert!(pool.is_empty());
     pool.submit_task(
-        Some(String::from(task_name)),
+        None,
         |_| {
             println!("Hello, world!");
             Some(2)
diff --git a/core/docs/en/overview.md b/core/docs/en/overview.md
index bba06adf..492f639b 100644
--- a/core/docs/en/overview.md
+++ b/core/docs/en/overview.md
@@ -29,3 +29,4 @@ replacement for IO thread pools, see [why better](../en/why-better.md).
 - [Work Steal Overview](../en/work-steal.md)
 - [Ordered Work Steal Overview](../en/ordered-work-steal.md)
 - [Coroutine Pool Overview](../en/coroutine-pool.md)
+- [Hook Overview](../../../hook/docs/en/hook.md)
diff --git a/hook/docs/en/hook.md b/hook/docs/en/hook.md
new file mode 100644
index 00000000..4d944060
--- /dev/null
+++ b/hook/docs/en/hook.md
@@ -0,0 +1 @@
+todo
\ No newline at end of file
diff --git a/hook/src/lib.rs b/hook/src/lib.rs
index 2e8fcccc..b4866625 100644
--- a/hook/src/lib.rs
+++ b/hook/src/lib.rs
@@ -45,7 +45,7 @@
     clippy::separated_literal_suffix, // conflicts with clippy::unseparated_literal_suffix
     clippy::single_char_lifetime_names, // TODO: change lifetime names
 )]
-//! see `https://github.com/acl-dev/open-coroutine`
+#![doc = include_str!("../docs/en/hook.md")]
 
 use once_cell::sync::OnceCell;
 use open_coroutine_core::co_pool::task::UserTaskFunc;