diff --git a/README.md b/README.md
index 0818a78fcbdf2635d1b726e14126cec601d9203a..f2e991e4d8491fbd0d2ca5d5b0118e4db005b3fc 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,8 @@ bool ExampleTool::configure(string outputDir, const SPMTMap *map) {
 
 bool ExampleTool::analyze(const Params& paras) {
 	// output gcu ID
+	// with paras.get("NAME_OF_PROPERTY") you can get the property you need
+	// the properties aviliable you chan find in the CommissioningAlg.cc
 	LogInfo << paras.get("GCU_ID") << endl;
 	return true;
 }