github
I created a GitHub repository (for SVN use) and chose not to initialize it in the wizard. Now, I cannot find an option to initialize the repository (I do not have a Git client installed, and I prefer not to). SVN access does not work properly since no master branch exists.
Can I still initialize the repository?
I would not like to delete and re-create the repository since I have set up all collaborators and such.
You can try and reverse how pull requests happen.
Issue a Pull Request
By default this will be your fork on the right (head repo) requesting to push its commits and changes to the original repo (base repo) on the left.
Click the drop down for both base repo and head repo and select each other's repos.
You want yours listed on the left (accepting changes) while the original repository is on the right (the one with changes to push). As illustrated in this image:
Send the pull request
If your fork has not had any changes, you should be able to automatically accept the merge.
If your code somehow conflicts or is not quite clean enough, then this will not work to update via the GitHub web interface and you will need grab the code and resolve any conflicts on your machine before pushing back to your fork.
As mentioned on this thread of the GitHub Google group, repository owners can delete pages from the edit view.
The delete button might be easy to miss, since the buttons from the view mode:
...become only slightly different in edit mode:
Perhaps GitHub should consider making the interface more obvious (e.g. making the delete button red, or something like that)
Best Answer
In the image you provide the "readme", "license" and ".gitignore" links look active... I believe if you click one of those it will auto generate a file which is committed to the master branch for you
probably a bit late tho