Fix error message that will show up if you do a fresh install

lua/default/lazy/treesitter.lua

@@ -1,6 +1,7 @@
 return {
     {
     "nvim-treesitter/nvim-treesitter",
+    branch = 'master',
     build = ":TSUpdate",
     config = function()
         require("nvim-treesitter.configs").setup({