vsh files have GLSL as associated language

## Preliminary Steps

Please confirm you have...
- [x ] reviewed [How Linguist Works](https://github.com/github/linguist#how-linguist-works),
- [ x] reviewed the [Troubleshooting](https://github.com/github/linguist#troubleshooting) docs,
- [x ] considered implementing an [override](https://github.com/github/linguist#overrides),
- [ x] verified an issue has not already been logged for your issue ([linguist issues](https://github.com/issues?utf8=%E2%9C%93&q=is%3Aissue+repo%3Agithub/linguist)).

## Problem Description

### URL of the affected repository:
https://github.com/serkonda7/v-sololearn-coding-challenges

### Expected language:
The language should be [V](https://github.com/vlang/v).

### Detected language:
GLSL

Start with the affected repository, the .vsh files, and Linguist's How Linguist Works and Troubleshooting documentation. Trace how the files are classified and identify the relevant language definition or test; this is done when those files are detected as V rather than GLSL.

Written by the indexing model from the issue text.