update neovim async tutorial link

README.md

@@ -35,7 +35,7 @@ A few tutorials have already been written to help people write plugins in Lua. S
 - [teukka.tech - From init.vim to init.lua](https://teukka.tech/luanvim.html)
 - [dev.to - How to write neovim plugins in Lua](https://dev.to/2nit/how-to-write-neovim-plugins-in-lua-5cca)
 - [dev.to - How to make UI for neovim plugins in Lua](https://dev.to/2nit/how-to-make-ui-for-neovim-plugins-in-lua-3b6e)
-- [ms-jpq - Neovim Async Tutorial](https://ms-jpq.github.io/neovim-async-tutorial/)
+- [ms-jpq - Neovim Async Tutorial](https://github.com/ms-jpq/neovim-async-tutorial)
 - [oroques.dev - Neovim 0.5 features and the switch to init.lua](https://oroques.dev/notes/neovim-init/)
 
 ### Companion plugins

doc/nvim-lua-guide.txt

@@ -61,7 +61,7 @@ https://dev.to/2nit/how-to-write-neovim-plugins-in-lua-5cca
 -  dev.to - How to make UI for neovim plugins in Lua:
 https://dev.to/2nit/how-to-make-ui-for-neovim-plugins-in-lua-3b6e
 -  ms-jpq - Neovim Async Tutorial:
-https://ms-jpq.github.io/neovim-async-tutorial/
+https://github.com/ms-jpq/neovim-async-tutorial
 -  oroques.dev - Neovim 0.5 features and the switch to init.lua:
 https://oroques.dev/notes/neovim-init/