diff --git a/README.md b/README.md
index 506bc58..96a276a 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # MaxValue
 An assembly program that finds the maximum value of a list.
+
+Taken from one of the GNU manuals on x86 assembly (no idea where my friend
+got it from).