message: Fix links to environments docs
diff: @@ -395,7 +395,7 @@ fn run() -> Result<(), failure::Error> {
  Arg::with_name("release")
  .long("release")
  .takes_value(false)
  - .help("[planned deprecation in v1.5.0, use --env instead. see https://github.com/cloudflare/wrangler/blob/master/docs/environments.md for more information]\nshould this be published to a workers.dev subdomain or a domain name you have registered"),
  + .help("[planned deprecation in v1.5.0, use --env instead. see https://github.com/cloudflare/wrangler/blob/master/docs/content/environments.md for more information]\nshould this be published to a workers.dev subdomain or a domain name you have registered"),
  )
  .arg(
  Arg::with_name("env")
  