Update README.md with improved structure and clarity

Author: wayiam

readme.md

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-```markdown
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 # YouTweet API
 
 **YouTweet** is a robust backend-focused social sharing API, inspired by the features of both YouTube and Twitter.
@@ -195,4 +195,3 @@ This project is licensed under the MIT License. See the [LICENSE](LICENSE) file
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 Feel free to explore and contribute to **YouTweet**! Let’s build something amazing together.
-```