docs: add Youtube link

README.md

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   Your ultimate guide to setting up Zed Editor with Vim mode, tailored settings, and key bindings for a seamless coding experience
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+[![IT Man -  Zed Editor 101 - Ultimate Zed Editor Setup Guide](https://i.ytimg.com/vi/NAk4tyfIM3A/hqdefault.jpg)](https://www.youtube.com/watch?v=NAk4tyfIM3A)
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 ## Introduction
 
 The Zed Editor 101 setup guide is designed to help you configure Zed Editor to enhance your development workflow. Whether you’re a Vim enthusiast or looking to boost your productivity with custom settings and key bindings, this guide provides all the necessary steps and resources. Follow along to get your Zed Editor configured with Nerd Font, Vim mode, local AI assistance, and more.