PowerShellGallery: PreRelease version not working

Are you experiencing an issue with...

- [x] [shields.io](https://shields.io/#/)
- [ ] My own instance
- [ ] [gh-badges NPM package](https://www.npmjs.com/package/gh-badges)

:beetle: **Description**

I've recently published some PowerShell Module prereleases and tried to create the badges.
Unfortunately it returns ``not found.` So I looked into the examples an tried the following prerelease version syntax:

- 1.2.5-alpha1
- 1.5.6.-preview (same syntax like the example Azure.Storage ( AzureRM.Batch has currently a preview version))

Am I using the wrong version syntax for PreReleases?

> PowerShellGallery requires a syntax like this in general: `Major.Minor.Fix-PreReleaseString` for PreReleases

:link: **Link to the badge**

-  -> `PSCoverage`
-  ->`PSCredentialStore`
-  -> `apvr-test`

:bulb: **Possible Solution**

Start by requesting the three linked PowerShell Gallery vpre badge URLs and comparing their results with the corresponding prerelease package versions. Determine whether the reported version forms are accepted, and consider the issue done when valid PowerShell Gallery prereleases resolve to badges instead of "not found."

Written by the indexing model from the issue text.