diff --git a/README b/README
index 0adc7d2..582be36 100644
--- a/README
+++ b/README
@@ -11,6 +11,8 @@ of HP28S RPL implementation.
 Following objects are managed: scalars, symbols, binaries, strings,
  programs.
 
+An interactive editor with autocompletion is provided (readline-based).
+
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 Here is a list of HP28s reserved words.