# Main Title

## Heading

This is a sample markdown document.

## Limitation

- The app hosted on shinyapps.io does not allow users to include pictures except they are hosted somewhere on the internet.
- If you want more control please use juicedown package directly.

### Heading 3

- item 1
- item 2
- item 3

#### Heading 4

Left | Center | Right
--- | --- | ---
d | e | f
x | y | z

For more details on Markdown syntax, please refer to https://commonmark.org/