docs(readme): grammar, Harmony capitalization, MoE & LM Studio wording

[kunald08]

Summary

Refines README wording and consistency. Documentation-only change; no code paths touched.

Changes

• Capitalize “Harmony” when referring to the response format
• Clarify LM Studio download sentence
• Clarify MoE tensor storage (blocks/scales, FP4 capitalization)
• Improve tool training phrasing (“were trained on”)
• Clarify BF16 activations recommendation
• Minor grammar/article and wording cleanups

Rationale

Improves readability and professionalism for new users and contributors.

Testing

• Manual render review of README
• No runtime or behavioral impact

Backward Compatibility

Safe: docs-only.

Checklist

• Conventional commit message
• Single-purpose change
• No functional changes
• CI expected to pass

Notes

Happy to adjust phrasing if maintainers prefer alternative

[pg56714]

PR_README_FIX.md should not be included in the commit.

[kunald08]

PR_README_FIX.md should not be included in the commit.

Removed the extra file—PR now only updates README. Thanks.