Invalid remote origin URL in non-Github repo

I was looking into using `gitdown` for a thing. However, I'm working with an Azure DevOps repository, which is triggering an edge case.

The thing that is tripping me up right now is the error below thrown by `gitinfo`. I've anonymized some values in the stack trace ;)

```
Error: Invalid remote origin URL ("https://{organization_name}@dev.azure.com/{organization_name}/{project_name}/_git/{repository_name}").
at parseRemoteOriginUrl ({repo_root}\node_modules\gitinfo\dist\utils.js:74:11)
at Object.gitinfo.getUsername ({repo_root}\node_modules\gitinfo\dist\gitinfo.js:132:44)
at Object.gitinfo.getGithubUrl ({repo_root}\node_modules\gitinfo\dist\gitinfo.js:51:44)
at Object.helper.compile ({repo_root}\node_modules\gitdown\dist\helpers\gitinfo.js:36:41)
at Object.gitdown.resolveURLs ({repo_root}\node_modules\gitdown\dist\gitdown.js:111:35)
at Object.gitdown.get ({repo_root}\node_modules\gitdown\dist\gitdown.js:54:19)
at async Object.gitdown.writeFile ({repo_root}\node_modules\gitdown\dist\gitdown.js:66:26)
```

I have no interest in using this functionality and have not included any of the `gitinfo` things in the Markdown files. However, it still tries to gather the information with the error as a result. I have not found an option to simply disable `gitinfo` altogether.

I've taken a look at the source code of `gitinfo` (different repo, I know) and it assumes a Github repo. That makes it a very good idea to allow `gitdown` users to disable the `gitinfo` parsing imo.