Add links

Author: weipin

README.md

@@ -1,5 +1,7 @@
 # Hello Async Rust
 
-Unofficial async Rust tutorial [WIP].
+Unofficial async Rust tutorial. [>> Read online][1]
 
-[Read online](https://weipin.github.io/hello-async-rust)
+Any PR is welcome and it will be merged immediately.
+
+[1]: https://weipin.github.io/hello-async-rust

src/SUMMARY.md

@@ -33,11 +33,10 @@
     - [Size](advanced/async_await/size.md)
     - [Exercises](advanced/async_await/exercises.md)
 - [Task](advanced/task/readme.md)
-- [Mutex]()
-- [Stream]()
+- [Exercises](advanced/exercises/readme.md)
 
 # Misc
 
-- [Further reading]()
-- [Projects]()
+- [Further reading](misc/further-reading.md)
+- [Projects](misc/projects.md)
 - [Rewards: a meme](misc/meme-before-after.md)

src/advanced/exercises/readme.md

@@ -0,0 +1,8 @@
+# Exercises
+
+1. Question: why a std::sync::Mutex cannot hold its guard across .await points?
+
+
+## Solutions
+
+TODO

src/misc/further-reading.md

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+# Further reading
+
+## RFCs
+
+- [2394-async_await](https://rust-lang.github.io/rfcs/2394-async_await.html)
+
+
+## Articles
+
+2024
+- [Let futures be futures](https://without.boats/blog/let-futures-be-futures/)
+
+2022
+- [How (and why) nextest uses tokio](https://sunshowers.io/posts/nextest-and-tokio/)
+
+2021
+- [Actors with Tokio](https://ryhl.io/blog/actors-with-tokio/)
+
+2020
+- [Async: What is blocking?](https://ryhl.io/blog/async-what-is-blocking/)

src/misc/projects.md

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+# Projects
+
+## Runtimes
+
+1. [Tokio](https://github.com/tokio-rs/tokio)
+1. [smol](https://github.com/smol-rs/smol)
+1. [Embassy](https://github.com/embassy-rs/embassy)