MediaWiki:Uploadtext
Use the form below to upload files using JPEG format for large screenshots, GIF for animations, SVG for images with a vector source like schematics, and PNG for other images is recommended. Also use a descriptive and concise filename, e.g. Munar craters.jpg instead of IMG_0086273.jpg. You will not be able to change the filename once you've uploaded the file.
Do not upload thumbnails additionally to full sized images. The MediaWiki software can resize an image when it is required as a thumbnail.
To view or search previously uploaded files go to the list of uploaded files, (re)uploads are also logged in the upload log, deletions in the deletion log.
To include a file in a page, use a link like [[File:File.png|thumb|Caption]]
to generate a thumbnail in a box in the left margin with a caption