diff --git a/buffer/buffer.go b/buffer/buffer.go
index 30745c3..a848956 100644
--- a/buffer/buffer.go
+++ b/buffer/buffer.go
@@ -1,3 +1,5 @@
+// Buffer is responsible for reading bytes from input, decode runes
+// and stream those to the lexer
 package buffer
 
 import (