diff --git a/src/interface.jl b/src/interface.jl
index a94d9dc..4db08d5 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -13,6 +13,7 @@ using JSON3, DataStructures
     sessionId::Int= 1
     maxConversation::Int= 10
 
+    # Ref: https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGML/discussions/3
     # {Role=> Content}  ;   Role can be system, user, assistant
     messages::OrderedDict= OrderedDict(
       :system=> "You are a helpful assistant.",