v2.0.1

This is a minor patch of votekit. It fixes minor bugs in the slate methods, adapts to the new csv format in the scot-elex repo, and updates some plotting functions.

Added

• Created a read the docs page.
• Add scale parameter to ballot_graph.draw() to allow for easier reading of text labels.
• Allow users to choose which bloc is W/C in historical Cambridge data for CambridgeSampler.

Changed

• Updated tutorial notebooks; larger focus on slate models, updated notebooks to match current codebase.
• Removed the seq-RCV transfer rule since it is a dummy function, replaced with lambda function.
• Update plot MDS to have aspect ratio 1, remove axes labels since they are meaningless in MDS.
• Update all BLT files in scot-elex repo to be true CSV files, updated load_scottish accordingly. #123 #129

Fixed

• Fixed bug by which slate-PlackettLuce could not generate ballots when some candidate had 0 support. #131
• Updated various functions in the ballot generator module to only generate ballots for non-zero candidates.
• Fixed one bloc s-BT pdf, which was incorrectly giving 0 weight to all ballot types.

Full Changelog: v2.0.0...v2.0.1