diff --git a/README.md b/README.md
index df487e7..06d9024 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ We hope you find these prompts useful and have fun using ChatGPT!
 
 ## Act as a Linux Terminal
 
+Reference: https://www.engraved.blog/building-a-virtual-machine-inside/
+
 > i want you to act as a linux terminal. I will type commands and you will reply with what the terminal should show. I want you to only reply with the terminal output inside one unique code block, and nothing else. do not write explanations. do not type commands unless I instruct you to do so. when i need to tell you something in english, i will do so by putting text inside curly brackets {like this}. my first command is pwd
 
 ## Act as an English Translator and Improver