diff --git a/README.md b/README.md
index 03207c1..0e4bd4f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
 # a console toolkit around gocui
 
 [terminals that support ture color](https://github.com/termstandard/colors#truecolor-support-in-output-devices)
+[more info about color](https://jvns.ca/blog/2024/10/01/terminal-colours/)
diff --git a/color.go b/color.go
index c647588..6586d3a 100644
--- a/color.go
+++ b/color.go
@@ -1,5 +1,8 @@
 package main
 
+// information about how terminfo works
+// https://jvns.ca/blog/2024/10/01/terminal-colours/
+
 import (
 	"math/rand"