Add mermaid

PureGero · web-flow · commit 42c1b239e998 · 2025-01-29T01:46:21.000+09:00
diff --git a/_config.yml b/_config.yml
@@ -13,3 +13,6 @@ callouts:
   warning:
     title: Warning
     color: red
+
+mermaid:
+  version: "11.4.1"
