Add typos ignore file

[benegee]

See crate-ci/typos#745 (comment)

Fixes #182

[sloede]

Fixes #182

Unfortunately not 😓

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.27%. Comparing base (ddd5dd8) to head (24bc27b).
Report is 2 commits behind head on main.

❗ Current head 24bc27b differs from pull request most recent head 27cd08f. Consider uploading reports for the commit 27cd08f to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #185   +/-   ##
=======================================
  Coverage   80.27%   80.27%           
=======================================
  Files          19       19           
  Lines         715      715           
  Branches       50       50           
=======================================
  Hits          574      574           
  Misses        137      137           
  Partials        4        4           

Flag	Coverage Δ
unittests	80.27% <ø> (ø)

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[sloede]

Why not just add a .typos.yml file to the main directory, to be consistent with Trixi.jl et al.?

[benegee]

I had not realized Trixi.jl was using it.