Add charts, graphs, slide deck example (#251)

examples/README.md

@@ -17,6 +17,7 @@ This is a colletion of fun examples for the Gemini API.
 * [Upload files to Colab](https://github.com/google-gemini/cookbook/blob/main/examples/Upload_files_to_Colab.ipynb): This is a helper notebook that shows how to upload files from your local computer to Colab. Note: to upload files to the Gemini API (text, code, images, audio, video), check out the [Files quickstart](https://github.com/google-gemini/cookbook/blob/main/quickstarts/File_API.ipynb).
 * [Voice Memos](https://github.com/google-gemini/cookbook/blob/main/examples/Voice_memos.ipynb): You'll use the Gemini API to help you generate ideas for your next blog post, based on voice memos you recorded on your phone, and previous articles you've written.
 * [Translate a public domain](https://github.com/google-gemini/cookbook/blob/main/examples/Translate_a_Public_Domain_Book.ipynb): In this notebook, you will explore Gemini model as a translation tool, demonstrating how to prepare data, create effective prompts, and save results into a `.txt` file.
+* [Working with Charts, Graphs, and Slide Decks](https://github.com/google-gemini/cookbook/blob/main/examples/Working_with_Charts_Graphs_and_Slide_Decks.ipynb): Gemini models are powerful multimodal LLMs that can process both text and image inputs. This notebook shows how Gemini 1.5 Flash model is capable of extracting data from various images.
 
 Folders
 * [Prompting examples](https://github.com/google-gemini/cookbook/tree/main/examples/prompting): A directory with examples of various prompting techniques.