please improve readme about boxen-web

[ocxo]

• You can clone boxen-web anywhere you'd like. ~/src is a common place for people to keep source code they're hackin' on. Put it wherever makes sense for you.
• A boxen is basically just a set of configurations that define what a development environment should look like for your organization or team.
• A GitHubber is a GitHub employee.
• boxen xyz will set up the xyz project as you have it defined in your team's boxen. Since you don't have the GitHub for Mac project set up on your personal or organization's boxen, boxen mac will fail because it cannot find the manifest for the mac project.
• You need to set those environment variables in order for the web app to work. You also may need to set SECRET_TOKEN (which you can generate with cd ~/path/to/boxen-web && rake secret).

export REPOSITORY=user_or_organization/repo_name
export GITHUB_CLIENT_ID=your_github_client_id
export GITHUB_CLIENT_SECRET=your_github_client_secret
export SECRET_TOKEN=your_secret_token

• boxen-web is not required, it just makes it easy to distribute the boxen to your team. The more important piece is that you've defined a configuration in a boxen. You can use boxen/our-boxen as an example of how to do that.

[fscz]

Thanks. Much better now 👍