Feature | Provide GitLab link in above page right sidebar menu

I want to suggest an improvement to make the GitLab link in the header contextual. At the moment, it points to the documentation, which I guess is not the expected behavior when on a child page.

For example, when on the /composer/ page, it should linkt to the composer repository and so on.

I'll search for a plugin with that functionality or we write a little custom script picking up some information of the current or parent Markdown (md) file. For this, we could use a md field in the md file header

Update: We integrate a GitLab link at the top of the right page sidebar.