It's catching "`dvc" somewhere

Odd, seems to be catching "`dvc" somewhere- maybe line 487 with
```
`dvc exp diff` has also an option to output a [Github-Flavored Markdown][gfm]
```
being accidentally picked up by one of the regexes.

_Originally posted by @rogermparent in https://github.com/iterative/dvc.org/pull/2862#issuecomment-954083610_

Related checker output:

```
* content/docs/user-guide/experiment-management/comparing-experiments.md
- ```dvc = https://```dvc/ (Fetch Error: Only absolute URLs are supported)
```