Update README.md

Added a few badges

Author: djokester

README.md

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+  <a href="https://badge.fury.io/py/groqeval"><img src="https://badge.fury.io/py/groqeval.svg" alt="PyPI version" height="19"></a>
+  <a href="https://codecov.io/github/djokester/groqeval" height="18"> 
+  <img src="https://codecov.io/github/djokester/groqeval/graph/badge.svg?token=HS4K1Z7F3P"/> 
+  </a>
+  <img alt="GitHub Actions Workflow Status" src="https://img.shields.io/github/actions/workflow/status/djokester/groqeval/codecov.yml?branch=main&style=flat&label=Tests">
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+</h1>
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 GroqEval is a powerful and easy-to-use evaluation framework designed specifically for language model (LLM) performance assessment. Utilizing the capabilities of Groq API, GroqEval provides developers, researchers, and AI enthusiasts with a robust set of tools to rigorously test and measure the relevance and accuracy of responses generated by language models.