NVim: spell check

modules/hm/vim.nix

@@ -428,10 +428,14 @@ let vp = pkgs.vimPlugins; in {
       g.mapleader = " "
 
       -- treesitter folding
-      vim.opt.foldmethod = "expr"
-      vim.opt.foldexpr = "nvim_treesitter#foldexpr()"
+      opt.foldmethod = "expr"
+      opt.foldexpr = "nvim_treesitter#foldexpr()"
       -- vim.cmd([[ set nofoldenable]])
-      vim.opt.foldenable = false
+      opt.foldenable = false
+
+      -- spell checking
+      opt.spell = true
+      opt.spelllang = "en_us"
     '';
   };
 }