docs: fix Visual Studio Marketplace link

Author: andrewmcodes

README.md

@@ -4,7 +4,7 @@ A collection of my favorite VS Code extensions for Ruby on Rails development.
 
 ## Install
 
-You can install the extension pack from [Open VSX](https://open-vsx.org/extension/andrewmcodes/rails-extension-power-pack) or the [Visual Studio Marketplace.](https://marketplace.visualstudio.com/manage/publishers/andrewmcodes/extensions/rails-extension-power-pack/hub?_a=acquisition)
+You can install the extension pack from [Open VSX](https://open-vsx.org/extension/andrewmcodes/rails-extension-power-pack) or the [Visual Studio Marketplace.](https://marketplace.visualstudio.com/items?itemName=andrewmcodes.rails-extension-power-pack)
 
 ## Extensions