Initial experiments with Lua config

lua/plugins/colorscheme.lua

@@ -0,0 +1,11 @@
+return {
+  'rose-pine/neovim', name = 'rose-pine',
+  config = function()
+    require('rose-pine').setup({
+      styles = {
+        transparency = true,
+      },
+    })
+    vim.cmd('colorscheme rose-pine')
+  end
+}