Add deprecation notice

DOC: Add screenshot of PhD Tools in action

CONFIG: Add submodules for papers and PhD templates

DOC: Add a basic README and LICENSE

FIX: Wrap flagpub source directory with quotes

FIX: Add arxiv to flagpub errors

FIX: Use find_pub for flagpub command

FIX: Correct argument for gdoc_type (spreadsheets)

FIX: Ensure spreadsheet URL used for spreadsheet gdoc types

FIX: Ensure authorship statment clones correct gdoc

FIX: Remove fixed 'Meetings' for prompt

FIX: Do not use unique_key for author/review commands

QUALITY: Update docs for lint and wordcount to support pubkey

FIX: Ensure local recursiveinputawk variable declared

FIX: Fix mktemp reference