Update link to Vim's ALE plugin
-- consult the instructions in the Luacheck documentation [3].
--
-- [1] https://luacheck.readthedocs.io/en/stable/config.html
--- [2] https://github.com/w0rp/ale
+-- [2] https://github.com/dense-analysis/ale
-- [3] https://github.com/mpeterv/luacheck#editor-support
ignore = {
