I am developing an open source application under the SourceForge web. I am currently working on the requirements specification of my app. I created a wiki page for that purpose. There is a text scenario for every use case on that page.
What I would need is to append a wireframe (e.g. an image) to some of the use cases. The wireframe is too big to be included into the page directly as an image. Rather it should be saved separately (ideally inside my GIT repository) and then linked from the wiki page.
I wasn't able to find out how to get a URL for a single file inside my GIT repository - I only found a link to a preview of the file inside the repository browser, which is not what I need. Ideally the link should be persistent across modifications of the image in the repository, so that the links inside a page would be valid even after I change the file inside the repository.
Another option would be to append the images to the wiki page as attachments. I tried that but wiki shows previews of all attachments above the page and they are too many of them.
What is the best way to append images (such as wireframes) to a wiki page on SourceForge?