adjust logo width/height in markdown to avoid blurring on PyPI

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.02%. Comparing base (60489cf) to head (cb10905). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #449 +/- ## ======================================= Coverage 92.02% 92.02% ======================================= Files 30 30 Lines 1468 1468 ======================================= Hits 1351 1351 Misses 117 117 ```

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[slayoo]

confirming - it looks that it helped.