Generate ImpactKit proceedings from individual contributions.
Each individual contribution should be in a folder named contrib-xx-yy, where xx is a number used for ordering and yy a short name for the contribution.
In the folder, there should be an .md file and optional .yaml files that will be compiled to PDF using pandoc.
A barebones template is provided in contrib-00-template.
The python script makeproc.py compiles the individual contributions to separate PDF files and them merges them taking into account that each contribution has to start in an odd page.