Update README.md

Author: MarkHoo

README.md

@@ -9,7 +9,7 @@
 * [控制语句](lessons/basics/control-structures.md)
 * [函数](lessons/basics/functions.md)
 * [管道操作符](lessons/basics/pipe-operator.md)
-* [模块(Module)]](lessons/basics/modules.md)
+* [模块(Module)](lessons/basics/modules.md)
 * [Mix](lessons/basics/mix.md)
 * [魔符(Sigil)](lessons/basics/sigils.md)
 * [文档模块](lessons/basics/documentation.md)
@@ -26,7 +26,7 @@
 * [错误处理](lessons/advanced/error-handling.md)
 * [可执行文件](lessons/advanced/escripts.md)
 * [并发](lessons/advanced/concurrency.md)
-* [OTP并发]](lessons/advanced/otp-concurrency.md)
+* [OTP并发](lessons/advanced/otp-concurrency.md)
 * [OTP Supervisors](lessons/advanced/otp-supervisors.md)
 * [OTP 分布式](lessons/advanced/otp-distribution.md)
 * [元编程](lessons/advanced/metaprogramming.md)