diff --git a/README.md b/README.md
index 4e2b426..2178715 100755
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ flowchart TD
     Text-->spacemono
     JS-->LayoutStyles([Layout & Styles])
     LayoutStyles-->HighlightJS
+    LayoutStyles-->Katex
     JS-->Codes
     JS-->Charting
     JS-->PDF