minimal extui fuzzy finder for neovim

doc: add new builtins to example

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README.md
··· 52 52 vim.ui.select = require("artio").select 53 53 54 54 vim.keymap.set("n", "<leader><leader>", "<Plug>(artio-files)") 55 + vim.keymap.set("n", "<leader>fh", "<Plug>(artio-helptags)") 56 + vim.keymap.set("n", "<leader>fb", "<Plug>(artio-buffers)") 55 57 ```