# Getting Started

Welcome to **MD Hub Secure**.

See [[Architecture Overview]] for the system shape and [[Project Plan]] for the milestone roadmap.

## Features

- Wiki links
- GitHub-flavored Markdown
- Tags like #foundation and #security
- Admonitions
- Mermaid diagrams
- Math delimiters for later KaTeX hydration

> [!NOTE]
> This is a representative admonition block.
> It should render with a strong callout style.

```mermaid
flowchart TD
  A[Markdown] --> B[Renderer]
  B --> C[Secure HTML]
```

Inline math: $E = mc^2$

Block math:

$$
\int_0^1 x^2 dx = \frac{1}{3}
$$