docs: update Neovim intruction

[brianhuster]

The configuration snippet for Neovim seems a bit outdated (it works, but I think we should recommend users the easy way)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.63%. Comparing base (7419b20) to head (c12369d).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1276   +/-   ##
=======================================
  Coverage   80.63%   80.63%           
=======================================
  Files          29       29           
  Lines        1503     1503           
  Branches      371      371           
=======================================
  Hits         1212     1212           
  Misses        233      233           
  Partials       58       58           

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