Inserted mandatory lines to treesitter.lua

lua/holger/plugins/treesitter.lua

@@ -14,6 +14,11 @@ return {
 			highlight = {
 				enable = true,
 			},
+
+			sync_install = false,
+			ignore_install = {},
+			auto_install = false,
+
 			-- enable indentation
 			indent = { enable = true },
 			-- enable autotagging (w/ nvim-ts-autotag plugin)