Fixing typo.
Merge pull request #742 from ycombinator/typos

Fixing typo.
Making buttons reflect regions instead of billing accounts.
Capitalizing Region + using Oxford comma.
Merge pull request #747 from ycombinator/clarify-signup

Making buttons reflect regions instead of billing accounts.
Email notification override for monitoring.

If notification_email_address is defined, use that instead of PagerDuty
for the notification plan.
Collect load balancer facts in monitoring.yml.
Actually, here's a better approach: tagging.
Register two sets of entities, checks and alarms.
Quote the with_items items.