Update README.md

Author: inkooboo

README.md

@@ -27,6 +27,6 @@ Post job to thread pool is much faster than for boost::asio based thread pool.
 
 See benchmark/benchmark.cpp for benchmark code.
 
-All code except [MPMCBoundedQueue](https://github.com/inkooboo/thread-pool-cpp/blob/master/thread_pool/mpsc_bounded_queue.hpp)
+All code except [MPMCBoundedQueue](https://github.com/inkooboo/thread-pool-cpp/blob/master/include/thread_pool/mpsc_bounded_queue.hpp)
 is under MIT license.