diff --git a/README.md b/README.md
index 80797ecd..d2ecda68 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,6 @@
 Machinarium allows to create fast networked and event-driven asynchronous applications<br>
 in synchronous/procedural manner instead of using traditional callback approach.
 
-The library is based on using and combining OS threads (pthreads) and efficient<br>
-cooperative multi-tasking primitives (coroutines).
+The library is based on using and combining pthreads(7) and efficient<br>
+cooperative multi-tasking primitives (coroutines). Each coroutine executed using own stack<br>
+and scheduling is transparently driven by epoll(2).