Pro-tip: you can add the language you want for syntax highlighting to your preformatted block sections. Compare:

Marked up as default/unspecified:

```
[preformatted text here]
```

Raindrops on a lake
A universe of ripples
Center touching all

Marked up as plaintext:

```text
[preformatted text here]
```

Raindrops on a lake
A universe of ripples
Center touching all

appropriate username