Update js-tour.md
Fix link to docs.noms.io
This is a short introduction to using Noms from JavaScript. It should only take a few minutes if you have some familiarity with JavaScript and Node.
-During the tour, you can refer to the complete [JavaScript SDK Reference](docs.noms.io/js/) for more information on anything you see.
+During the tour, you can refer to the complete [JavaScript SDK Reference](https://docs.noms.io/js/) for more information on anything you see.
## Requirements
