Installing Watchman page is not found in expo docs

I am a newbie for this expo, I am following your docs to installing expo LOC

Some macOS users encounter issues if they do not have Watchman installed on their machine, so if you are using a Mac we recommend that you install it. Download and install Watchman.

When accessing this page (https://facebook.github.io/watchman/docs/install.html)

Looks like the Watchman project changes that URL to:

FYI, I have not needed to install Watchman manually, so maybe give things a try first to see if you need to do this.