Adding which key

This will help freshers get used to keyboard shortcuts easily.

init.lua

@@ -26,6 +26,16 @@ require('packer').startup(function(use)
     },
   }
     
+  use { -- WchickKey
+  "folke/which-key.nvim",
+  config = function()
+    vim.o.timeout = true
+    vim.o.timeoutlen = 300
+    require("which-key").setup {}
+  end
+  }
+
+
   use { -- Autocompletion
     'hrsh7th/nvim-cmp',
     requires = { 'hrsh7th/cmp-nvim-lsp', 'L3MON4D3/LuaSnip', 'saadparwaiz1/cmp_luasnip' },