Template:Improve image/doc

Usage
zh:Template:Improve image/doc
 * improveimage will generate the above notice on a file description page. Use it on files that are of low quality, outdated, or sub-standard that should be improved.
 * You can also use the first parameter to add notes on what needs to be improved – e.g. notes
 * This template will add files to Category:Images that need improving.