Consider this:

```
---
name:"mello"
title: "hello"
---
````

The YAML parsing _fails_, and hence we can't give the error message we would if instead we had

```
---
name:"mello"
---
```

I'm not sure how to fix this in general outside of writing a better YAML parser, and I really don't want to do that. We have a linting pass, and we could search for colons that don't have a space after them. But that might yield false positives, which are similarly annoying
cscheid
2022-03-05T02:25:20Z
cscheid
enhancement yaml-validation
Future
open
YAML error messages in the presence of parse errors are poor
https://github.com/quarto-dev/quarto-cli/issues/385