Update README.md

Author: aap01

README.md

@@ -82,11 +82,11 @@ Add this in your `init.lua` or `plugins.lua`
 
 ```lua
 -- Install without configuration
-use ({ 'projekt0n/github-nvim-theme', version = 'v0.0.7' })
+{ 'projekt0n/github-nvim-theme', version = 'v0.0.7' }
 -- or                                 branch = '0.0.x'
 
 -- Or with configuration
-use({
+{
   'projekt0n/github-nvim-theme', version = 'v0.0.7',
 -- or                            branch = '0.0.x'
   config = function()
@@ -96,7 +96,7 @@ use({
 
     vim.cmd('colorscheme github_dark')
   end
-})
+}
 ```
 
 ## Usage