Add treesitter

lua/config/treesitter.lua

@@ -0,0 +1,11 @@
+return {
+  "nvim-treesitter/nvim-treesitter",
+  run = ":TSUpdate",
+  config = function()
+    require("nvim-treesitter.configs").setup({
+      ensure_installed = { "lua", "c", "cpp", "rust" },
+      highlight = { enable = true, additional_vim_regex_highlighting = false },
+      indent = { enable = true },
+    })
+  end,
+}