standardise information in the first cell of a notebook

[MridulS]

example -> https://raw.githubusercontent.com/econ-ark/REMARK/master/REMARKs/KrusellSmith.md the YAML part should be inside the first cell of the KrusellSmith notebook, and econ-ark.org should be able to extract it and construct GitHub Pages.

[MridulS]

https://github.com/citation-file-format/citation-file-format

[MridulS]

from #62

• URL to the repo [button]
• Title of the REMARK
• One line summary of the REMARK
• Abstract of the REMARK
• URL for the notebook [if exists] [button]
• Authors of the Paper [if different from REMARK author]
• Authors of the REMARK
• bib [if exists]
• DOI [if exists] [button]
• link to one figure [optional]
• link to a downloadable pdf [if exists] [button]
• any other link [optional]

[llorracc]

Decided:

1. For REMARKs, this info should be in the markdown file in the REMARKs repo
2. For DemARKs, this should be in the metadata for the DemARK
   • We need to develop some tool/form for querying the user for the required and optional metadata
   • This can reside, say, in econ-ark-tools, and be incorporated in a "template"

[llorracc]

Has been moved to the metadata files in REMARKs -- for example, BufferStockTheory