diff --git a/README.md b/README.md
index 10e8871..6d96798 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
-# notes
+Demo notes
 
 ```mermaid
 sequenceDiagram
-  participant A as Alice<img src=x onerror=top.document.documentElement.setAttribute('data-seq','POC-SEQ')>$$	ext{A}$$
+  participant A as Alice<img src=x onerror=top.document.documentElement.setAttribute('data-seq','POC-SEQ')>$$\text{A}$$
   A->>B: hi
 ```