Wrong link for Watchman Installation guide

[mateNemeth]

The link for the Watchman installation on the environment setup page redirects to https://facebook.github.io/watchman/docs/install.html#buildinstall, which doesn't exist (anymore ?).

[Simek]

Refs: #1809, #1811

[Simek]

You could have waited until one of PRs is merged (before closing this issue), but thank you for reporting this anyway 👍

[mateNemeth]

@Simek sorry, should i reopen it?

[Simek]

Probably we will need to wait few days until one of the PRs will be merged by a maintainer, but it might happen earlier. Having this issue open could prevent someone from creating similar one, but it's not that crucial, there are duplicates anyway. I leave the decision to yourself.

[mateNemeth]

Ok. I'll reopen it then until a PR is merged.

[Simek]

#1809 was merged 😉