Convert WIKI VIMWIKI to PNM

The Vimwiki Markup Language (WIKI) is a file extension used for personal wiki files managed by the Vim text editor. Vimwiki enables users to organize notes, manage to-do lists, write documentation, and maintain diaries. It stores data in plain text files with its own markup syntax, which can be exported to HTML. Vimwiki was developed to enhance Vim's functionality by providing a structured way to handle personal knowledge bases and notes efficiently.

The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.