# Title

## SubTitle

**content**

## サブタイトル

[A link to GitHub](http://github.com/)

This is `$E = mc^2$` inline math.

This first math `$x^2$` in this line will render. This one `$z^3$` should as well.

Also within parentheses (`$x^2$`) and (`$z^3$`).

```python
class Foo:
    def bar(self, arg: str = "") -> int:
        return len(arg)
```
