Update README.md

Author: bilgeyucel

README.md

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 # Haystack Tutorials
 
 <div align="center">
-  <a href="https://haystack.deepset.ai/"><img src="https://github.com/deepset-ai/haystack/blob/main/images/banner.png" alt="Green logo of a stylized white 'H' with the text 'Haystack, by deepset.' Abstract green and yellow diagrams in the background."></a>
+  <a href="https://haystack.deepset.ai/"><img src="https://github.com/deepset-ai/haystack/blob/main/images/banner.png" alt="Blue logo of a stylized white 'H' with the text 'Haystack, by deepset.' Abstract blue diagrams in the background."></a>
 </div>
 
-[**Haystack**](https://github.com/deepset-ai/haystack) is an open source framework by [**deepset**](https://deepset.ai) for building production-ready **LLM applications**, **retrieval-augmented generative pipelines** and **state-of-the-art search systems** that work intelligently over large document collections. It lets you quickly try out the latest models in natural language processing (NLP) while being flexible and easy to use.
-
 This is the repository where we keep all the Haystack tutorials 📓 👇 These tutorials are also published to the [Haystack Website](https://haystack.deepset.ai/tutorials/).
 
 To contribute to the tutorials, please check out our [Contributing Guidelines](./Contributing.md).
@@ -33,4 +31,4 @@ To contribute to the tutorials, please check out our [Contributing Guidelines](.
 | [Retrieving a Context Window Around a Sentence](./tutorials/42_Sentence_Window_Retriever.ipynb)                                                                   | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepset-ai/haystack-tutorials/blob/main/tutorials/42_Sentence_Window_Retriever.ipynb) |                                                                                                                                                                                                                          |
 | [Build a Tool-Calling Agent](./tutorials/43_Building_a_Tool_Calling_Agent.ipynb)                                                                   | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepset-ai/haystack-tutorials/blob/main/tutorials/43_Building_a_Tool_Calling_Agent.ipynb) |                                                                                                                                                                                                                          |
 | [Creating Custom SuperComponents](./tutorials/44_Creating_Custom_SuperComponents.ipynb)                                                                   | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepset-ai/haystack-tutorials/blob/main/tutorials/44_Creating_Custom_SuperComponents.ipynb) |                                                                                                                                                                                                                          |
-| [Creating a Multi-Agent System with Haystack](./tutorials/45_Creating_a_Multi_Agent_System.ipynb)                                                                   | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepset-ai/haystack-tutorials/blob/main/tutorials/45_Creating_a_Multi_Agent_System.ipynb) |                                                                                                                                                                                                                          |
+| [Creating a Multi-Agent System with Haystack](./tutorials/45_Creating_a_Multi_Agent_System.ipynb)                                                                   | [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deepset-ai/haystack-tutorials/blob/main/tutorials/45_Creating_a_Multi_Agent_System.ipynb) |                                                                                                                                                                                                                          |