diff --git a/README.md b/README.md
index 9f40cd5..1beabed 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,5 @@
 The goal was to write a TCP / RTU modbus library written in c++ as a header-only, but reality quickly followed suit. 
 To avoid large implementations in the header file and create a mess, I quickly decided to write it more conventional.
 
-
+The Modbus protocol description kan be found in the 'documentation' folder. [documentation/protocol.md]
+The actual implementation is described in [documentation/implementation.d]