Move video up on the README.md page (nvim-lua#563)

To help new users get started, how about moving the video link ("Effective Neovim: Instant IDE ") right after "Post Installation"?

This way new users, can install it, and right away proceed to learn how to use it.

README.md

@@ -71,6 +71,10 @@ If you would prefer to hide this step and run the plugin sync from the command l
 nvim --headless "+Lazy! sync" +qa
 ```
 
+### Introduction
+
+To get started, see [Effective Neovim: Instant IDE](https://youtu.be/stqUbv-5u2s), covering the previous version. Note: The install via init.lua is outdated, please follow the install instructions in this file instead. An updated video is coming soon.
+
 ### Recommended Steps
 
 [Fork](https://docs.github.com/en/get-started/quickstart/fork-a-repo) this repo (so that you have your own copy that you can modify) and then installing you can install to your machine using the methods above.
@@ -163,9 +167,6 @@ Each PR, especially those which increase the line count, should have a descripti
     When you run Neovim using `nvim-kickstart` alias it will use the alternative config directory and the matching local directory `~/.local/share/nvim-kickstart`. You can apply this approach to any Neovim distribution that you would like to try out.
 * What if I want to "uninstall" this configuration:
   * See [lazy.nvim uninstall](https://github.com/folke/lazy.nvim#-uninstalling) information
-* Are there any cool videos about this plugin?
-  * Current iteration of kickstart (coming soon)
-  * Here is one about the previous iteration of kickstart: [video introduction to Kickstart.nvim](https://youtu.be/stqUbv-5u2s). Note the install via init.lua no longer works as specified. Please follow the install instructions in this file instead as they're up to date.
 * Why is the kickstart `init.lua` a single file? Wouldn't it make sense to split it into multiple files?
   * The main purpose of kickstart is to serve as a teaching tool and a reference
     configuration that someone can easily `git clone` as a basis for their own.