diff --git a/Firmware/Marlin_Cyclone_MOD/README.md b/Firmware/Marlin_Cyclone_MOD/README.md
index fc46090..5355eab 100644
--- a/Firmware/Marlin_Cyclone_MOD/README.md
+++ b/Firmware/Marlin_Cyclone_MOD/README.md
@@ -2,12 +2,22 @@ Description
 --------
 This is a patch of Marlin by ErikZalm (https://github.com/ErikZalm/Marlin) that adds probing command (G30) with the functions developed by larsbrubaker (https://github.com/ErikZalm/Marlin/pull/323)
 
-The changes made are hereby released on the public domain.
+The changes made (marked as _CGS MOD_) are hereby released on the public domain.
 
 Quick Information  
 ===================
 You must setup two endstops for the Z axis, the lower one is considered our "probe"  
 
+_Pin definitions (from "pins.h")_  
+<pre>
+  <code>
+// We are using the Z_MIN endstop as a probe  
+// Also, we have our Z_MAX endstop to limit the vertical movement of the spindle  
+#define Z_PROBE_PIN 27  // using Sanguinololu, pin 36 (D27) , labeled A4  
+#define Z_PROBE_HIT_VALUE 0 // Switch this if your probe gives an inverted value  
+  </code>
+</pre>
+
 Disclaimer
 ===================
 This hardware/software is provided “as is," and you use the hardware/software at your own risk. Under nocircumstances shall Carlosgs be liable for direct, indirect, special, incidental, or consequential damages resulting from the use, misuse, or inability to use this hardware/software, even if Carlosgs has been advised of the possibility of such damages.