update toc

book/contents/SUMMARY.md

@@ -72,14 +72,14 @@
     - [循环引用与自引用](advance/circle-self-ref/intro.md)
         - [Weak与循环引用](advance/circle-self-ref/circle-reference.md)
         - [结构体中的自引用](advance/circle-self-ref/self-referential.md))
-    - [多线程并发编程 doing](advance/concurrency-with-threads/intro.md)
+    - [多线程并发编程](advance/concurrency-with-threads/intro.md)
         - [并发和并行](advance/concurrency-with-threads/concurrency-parallelism.md)
         - [使用多线程](advance/concurrency-with-threads/thread.md)
         - [线程同步：消息传递](advance/concurrency-with-threads/message-passing.md)
         - [线程同步：锁、Condvar和信号量](advance/concurrency-with-threads/sync1.md)
         - [线程同步：Atomic原子操作与内存顺序](advance/concurrency-with-threads/sync2.md)
         - [基于Send和Sync的线程安全](advance/concurrency-with-threads/send-sync.md)
-    - [async/await并发编程 todo](advance/async/intro.md)
+    - [async/await异步编程 doing](advance/async/intro.md)
         - [async/await语法 todo](advance/async/async-await.md)
         - [future详解 todo](advance/async/future/into.md)
             - [何为Future](advance/async/future/future.md)

book/contents/advance/async/intro.md

@@ -1,5 +1,6 @@
 # 异步编程
 
+
 https://rust-lang.github.io/async-book/01_getting_started/03_state_of_async_rust.html
 
-## 并发
+[]