Adding .cfg files syntax highlighting

Problem to solve

Hello, I am not quite sure if this is the place but I might as well post. GitHub currently have syntax highlighting for ".cfg" files. What is a ".cfg" file you asked? It's a configuration file, commonly use in both softwares and games. I personally prefer GitLab over GitHub and I went to upload my code and noticed that there was no highlighting to it. (Sorry if I leave some information out, I wasn't't exactly sure on how to answer some questions apart of the template)

Intended users

This feature would be use by both developers and gamers. As a very serious gamer, especially for Counter Strike, I would like to have my configuration files uploaded to GitLab which isn't a problem. But as a programmer and software developer, it hurts my eyes to read unhighlighted code. This feature would also be use by system administrators as .cfg is commonly use on servers, especially game servers.

Proposal

I do not know much about GitLab code as I only took a look at it but I would assume this feature would not be that hard to implement. If I was implementing it I would prob use highlights.js since its a very powerful library to do just that. However I am sure the developers of GitLab have a better way of dealing with it.

Links / references

An example of the file on GitHub: https://github.com/devKurieita/csgo_config/blob/master/keybinds.cfg

An example of the file on GitLab: https://gitlab.com/kurieita/csgo-config/blob/master/keybinds.cfg