diff --git a/README b/README
index 8486e637..1951194f 100644
--- a/README
+++ b/README
@@ -29,6 +29,12 @@ local_settings.py file set in the same directory, or by a file referenced
 in the CHRONO_SETTINGS_FILE environment variable.
 
 
+Code Style
+----------
+
+black --target-version py35 --skip-string-normalization --line-length 110
+
+
 Tests
 -----