Template:Missing pages/doc

Usage
A template to mark scans with missing pages.

Works so marked are categorised into subcategories of Category:Scans with missing pages:
 * If placeholders have been inserted: Category:Scans with missing pages with placeholders
 * If placeholders have not been inserted: Category:Scans with missing pages without placeholders

If a replacement source is given:
 * If a source is given: Category:Scans with missing pages with source for replacement

Parameters

 * : The missing pages
 * : Use "yes" to indicate the file has placeholder pages inserted.
 * : A source for replacement pages