update configuration

init.lua

@@ -104,6 +104,11 @@ vim.opt.number = true
 --  Experiment for yourself to see if you like it!
 vim.opt.relativenumber = true
 
+vim.opt.tabstop = 2
+vim.opt.shiftwidth = 2
+vim.opt.expandtab = true
+vim.opt.autoindent = true
+
 -- Enable mouse mode, can be useful for resizing splits for example!
 vim.opt.mouse = 'a'