refactor(docs): remove title and image as they were duplicates

Author: kesku

docs/index.mdx

@@ -5,10 +5,6 @@ description: A comprehensive collection of practical applications, tutorials, an
 keywords: [perplexity, sonar, api, cookbook, examples, tutorials]
 ---
 
-# Perplexity Sonar API Cookbook
-
-![SONAR](cookbook/static/img/perplexity-sonar.png)
-
 **Build with the best AI answer engine.** A comprehensive collection of practical applications, tutorials, and integration guides built with [**Perplexity's Sonar API**](https://sonar.perplexity.ai/) - the fastest, most cost-effective grounded search APIs with unparalleled real-time, web-wide research and Q&A capabilities.
 
 ## 🌟 Why Sonar API?