added plugins

init.lua

@@ -160,6 +160,7 @@ vim.opt.scrolloff = 10
 -- Set highlight on search, but clear on pressing <Esc> in normal mode
 vim.opt.hlsearch = true
 vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')
+vim.keymap.set('n', '<F5>', vim.cmd.UndotreeToggle)
 
 vim.keymap.set('n', '<C-M>', ':lua require("harpoon.mark").add_file()<CR>')
 vim.keymap.set('n', '<C-n>', ':lua require("harpoon.mark").rm_file()<CR>')
@@ -238,6 +239,7 @@ require('lazy').setup({
   'neoclide/coc.nvim',
   'junegunn/fzf',
   'xiyaowong/transparent.nvim',
+  'mbbill/undotree',
 
   -- NOTE: Plugins can also be added by using a table,
   -- with the first argument being the link and the following