Update README hero image with before/after examples

[kfallah]

Summary

• Replace the single Telegram screenshot in the README with side-by-side before/after training images
• Shows the visible effect of SDPO training on model output

Test plan

• Verify images render correctly on GitHub

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated README images to display before and after training comparisons side-by-side instead of a single demo image.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Cache: Disabled due to data retention organization setting

Knowledge base: Disabled due to data retention organization setting

📥 Commits

Reviewing files that changed from the base of the PR and between ff7fda8 and 1fb08b6.

⛔ Files ignored due to path filters (2)

• after.png is excluded by !**/*.png
• before.png is excluded by !**/*.png

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Walkthrough

The README.md image display was updated to show two side-by-side images (before.png and after.png, each 380px wide) instead of a single Telegram demo image (400px wide), separated by a non-breaking space.

Changes

Cohort / File(s)	Summary
Documentation Update README.md	Changed image block from single telegram.png (400px width) to dual side-by-side images: before.png and after.png (each 380px width) with non-breaking space separator.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A rabbit hops with glee,
Before and after for all to see,
Side by side they proudly stand,
Showcasing change across the land! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly and clearly describes the main change: replacing a single hero image with before/after examples, which matches the file summary showing README.md changes from one image to two side-by-side images.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch readme-before-after-images

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