I have an old project hosted here
There was a whole lot of doc in a wiki form at
But it completely disappeared?
Now it's like i only have the tree/trunk as the root folder, everything else vanished. It was an SVN import.
Where the wiki is? I don't even have a "wiki" link in the menu right to "projects"?
The wiki feature that you mention with the Wiki link to the right of Projects uses a repository that is separate from the repository that is displayed under the main URL. For example:
If the wiki was at https://github.com/Magister54/opengauge/tree/wiki, that is a path that is inside the main repository, not inside the Wiki. If you wish to enable the Wiki feature for your repository, you can do so in the repository settings.
I hope that helps!