diff --git a/readme.md b/readme.md
index 1d3368f..8bb324b 100644
--- a/readme.md
+++ b/readme.md
@@ -228,6 +228,7 @@ Handle project workflows in a unified way:
       * codecs repository
       * disable & enable https
 * test
+* underscore internals
 
 ### Shell → Python