In the readme.md add a description how to install VHDL_LS for Neovim

[Chris44442]

In the readme.md add a description how to install VHDL_LS for Neovim:

Use in Neovim

Neovim provides an LSP client to the VHDL_LS language server. Install the vhdl_ls
binary e.g. via Cargo. The binary must be on the path and executable (if you
can run "vhdl_ls -h" in the terminal then you're good). Put the "vhdl_libraries"
directory into the parent directory of the vhdl_ls binary.

In your Neovim config.lua add the following:

function STARTVHDLLS()
  vim.lsp.start({
    name = 'vhdl_ls',
    cmd = {'vhdl_ls'},
  })
end
vim.api.nvim_set_keymap('n', '<F5>', ':lua STARTVHDLLS()<CR>', { noremap = true, silent = true })

This is just one example, there are many ways to run language servers. Anyway
when you are inside a buffer you can now hit F5 to start VHDL_LS. Autostart is
also possible. For more info, have a look at the Neovim LSP documentation.

[Schottkyc137]

This sounds like a great addition! Can you open a Pull Request with the suggested change?