diff --git a/README.md b/README.md
index e2bea06..0c27101 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ lengths, or whether an identifier is real.
 
 ## Requirements
 
-- Python 3.10+
+- Python 3.8+
 - No third-party packages
 
 ## Quick Start
diff --git a/luhn.py b/luhn.py
index e6bf069..e680a07 100644
--- a/luhn.py
+++ b/luhn.py
@@ -1,4 +1,4 @@
-"""Utilities for validating and generating Luhn check digits."""
+"""Validate numbers and calculate or append check digits using the Luhn algorithm."""
 
 from __future__ import annotations