I am looking for a recommendation on what solution is a good practice for documenting and updating an application using a git repository.
We are working with a large codebase and multiple teams of developers, while feature documentation for end-users is done by one person, something I intend to change, as no single person can keep up with the amount of changes coming in. The idea is letting multiple people constantly update the repository. An option is, when anyone completes a feature or any significant change to the application (from the user's point of view), they should create a respective entry in the documentation repository.
Currently the favorite solution is to use LaTeX and put everything in a GitLab repository, however some developers favor "something markdown-based" over TeX, so I am here to ask if there are well known industry standards in terms of solutions for this.
What software could be used effectively to achieve placing documentation in a git repository to be updated constantly by multiple people, when they each complete features? Is there an industry standard?