…ow not to look for a Typescript version.

I'm a first-time Redwood user. While working through the tutorial, once I hit the intermission and started working through the examples, I realized cloning the tutorial repo with the default instructions contained js-only code. Since the tutorial provided example snippets in Typescript, I figured there must be a separate branch or way to download a typescript version. After poking around, I found this open issue redwoodjs/redwood-tutorial#56 and realized this was in progress, so this just edits the documentation to save other readers time while working through the tutorial. I'm no copywriter, and the tutorial seems to take a specific tone, so please feel free to edit the copy or make suggestions (i.e. link to the github issue in the comment so people can track it) I didn't include the issue since there doesn't seem to be a precedent for doing so in the rest of the documentation. Using Redwood for the first time has been a great experience by the way!

Co-authored-by: Dominic Saadi <[email protected]>