Environment docs error

[TheRusskiy]

Is there an error in the docs? They say to use the env key, while in the code it's environment

skylight-ruby/lib/skylight/config.rb

Line 280 in 9072ec3

environment = opts.delete(:environment)

https://www.skylight.io/support/environments#2-require-and-start-the-skylight-agent-in-each-of-your-desired-environments

[TheRusskiy]

Just noticed the docs are open source :-)
Here's a PR to fix them: skylightio/skylight-docs#9