docs(readme): update banner image and replace asset file

- update README.md to reference new preview.jpg instead of git-banner.png
- add assets/preview.jpg as replacement banner image
- remove deprecated assets/git-banner.png
This commit is contained in:
2026-04-24 12:32:06 -04:00
parent cbceea72fa
commit f823dc4803
3 changed files with 1 additions and 1 deletions
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