feat: add note about root_dir for nvim-lspconfig

[martenmatrix]

nvim-lspconfig is the official collection of LSP server configurations by NeoVim. Therefore, the majority of NeoVim users use those defaults. It should be included how to prevent attaching ts_ls and denols to a buffer.

Additionally, single_file_support was renamed to workspace_required in NeoVim.

[martenmatrix]

I apologize for not creating an issue for this. I hope that is fine.

[bartlomieju]

Thanks for the contribution! The single_file_support → workspace_required update is needed, but there are a few issues to address:

1. root_dir example is incorrect

The added code block has:

root_dir = {"package.json"},

But root_dir expects a function, not a table of strings. It should use root_pattern from lspconfig:

root_dir = require("lspconfig").util.root_pattern("package.json"),

As written, this would break users' configs.

2. Kickstart.nvim section not updated

The kickstart.nvim example further down the page still uses single_file_support = false — this should also be updated to workspace_required = true for consistency.

3. Fragile GitHub line-number link

The link to lsp/ts_ls.lua#L56-L68 will break as that file changes. Consider linking to the file without line numbers, or just describing the behavior inline.