MediaWiki:Uploadtext
From Graces Guide
Use the form below to upload files, to view or search previously uploaded images go to the list of uploaded files, uploads and deletions are also logged in the upload log.
To upload multiple files in one operation, first put them all in a .zip file on your computer, then upload using the zip file option. The files will then be unpacked and processed as if you had uploaded them individually. If you enter a summary it will apply to all files. The destination filename will be chosen automatically.
To include the image in a page, use a link in the form [[{{ns:image}}:File.jpg]], [[{{ns:image}}:File.png|alt text]] or [[{{ns:media}}:File.ogg]] for directly linking to the file.