docs: Update README.md

README.md

@@ -39,6 +39,7 @@ With Lazy.nvim:
     priority = 1000, -- needs to be loaded in first
     config = function()
         require('tiny-inline-diagnostic').setup()
+        vim.diagnostic.config({ virtual_text = false }) -- Only if needed in your configuration, if you already have native LSP diagnostics
     end
 }
 ```