update readme.md

README.md

@@ -1,4 +1,4 @@
-# Rust 语言圣经 (The course)
+# Rust语言圣经 (The Course)
 
 - 在线阅读
 

book/contents/async/multi-futures-simultaneous.md

@@ -1,4 +1,4 @@
-# 同时运行多个Future
+# 使用`join!`和`select!`同时运行多个Future
 招数单一，杀伤力惊人，说的就是 `.await` ，但是光用它，还真做不到一招鲜吃遍天。比如我们该如何同时运行多个任务，而不是使用`.await`慢悠悠地排队完成。
 
 ## join!

book/contents/performance/intro.md

@@ -3,4 +3,7 @@
 ##  How do I profile a Rust web application in production?
 https://www.reddit.com/r/rust/comments/rupcux/how_do_i_profile_a_rust_web_application_in/
 
-https://zhuanlan.zhihu.com/p/191655266
+https://zhuanlan.zhihu.com/p/191655266
+
+## 内存对齐
+https://www.reddit.com/r/rust/comments/s793x7/force_4byte_memory_alignment/

book/contents/performance/runtime-check.md

@@ -28,5 +28,7 @@ https://www.reddit.com/r/rust/comments/rntx7s/why_use_boxleak/
 ## bounds check
 https://www.reddit.com/r/rust/comments/rnbubh/whats_the_big_deal_with_bounds_checking/
 
+https://www.reddit.com/r/rust/comments/s6u65e/optimization_of_bubble_sort_fails_without_hinting/
+
 ## 使用assert 优化检查性能
-https://www.reddit.com/r/rust/comments/rui1zz/write_assertions_that_clarify_code_to_both_the/
+https://www.reddit.com/r/rust/comments/rui1zz/write_assertions_that_clarify_code_to_both_the/