python.nvim: The road to "stable"

[joshzcold]

• Clean up logic and data within venv create: refactor: python.vim commands uses subcommand syntax instead of uniqu… #16
• python.nvim user commands are all subcommands instead of lots of unique commands :Python <x> refactor: python.vim commands uses subcommand syntax instead of uniqu… #16
• python.nvim has a test suite executed by github actions feat: start testing with mini.nvim #18
• auto tagging the repo from PR merges.
• add a contributing doc docs: hookup vim-docs, lint, contributing doc #20
• see about replacing the nui.popup dependency with built-in window creation. Feat/replace nui popup #19
• update readme with some kind of logo (python + neovim)