added options to visualize :s and yank commands

lua/options.lua

@@ -10,3 +10,10 @@ vim.o.completeopt = "menu,popup,noselect"
 vim.o.signcolumn = "yes"
 vim.o.foldmethod = "expr"
 vim.o.foldlevel = 99
+vim.o.inccommand = "split"
+
+vim.api.nvim_create_autocmd("TextYankPost", {
+   callback = function()
+      vim.highlight.on_yank()
+   end,
+})