chore: add prettier config

.prettierrc

@@ -0,0 +1,6 @@
+{
+    "singleQuote": true,
+    "tabWidth": 4,
+    "semi": false,
+    "proseWrap": "always"
+}

README.md

@@ -95,7 +95,7 @@ currently supported.
 -   [WhichKey](https://github.com/folke/which-key.nvim)
 -   [Trouble](https://github.com/folke/trouble.nvim)
 -   [NvimTree](https://github.com/kyazdani42/nvim-tree.lua)
--   [Nnn](https://github.com/mcchrish/nnn.vim)
+-   [n³](https://github.com/mcchrish/nnn.vim)
 
 ## Other implementations