Update README.md

README.md

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 license: cc-by-4.0
+language:
+- hi
+- en
+- fr
+- pt
+- it
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+<center><h1>Community Alignment</h1></center>
+
+*Community Alignment* is a large-scale open source, multilingual and multi-turn preference dataset to align LLMs with human preferences across cultures. It features prompt-level overlap in annotators, enabling social-choice-based and distributional approaches to LLM alignment, as well as natural language explanations for choices.
+
+* [**Large-scale**] ~200,000 comparisons of LLM responses, collected from >3,000 unique annotators who provided feedback at an individual level.
+* [**Multilingual**] Contains comparisons in English, French, Italian, Hindi, and Portuguese. 63% of comparisons are non-English.
+* [**Prompt-level overlap**] 2599 prompts feature at least 10 annotations per comparison where annotators overlap across prompts.
+* [**High-quality natural language explanations**] For 28% of prompts, annotators provided detailed explanations why they preferred one response over another.
+
+## License
+
+Community Alignment is released under the Creative Commons Attribution 4.0 International License (CC-BY-4.0).