Add Slack integration
Update README.md
Clarify product name in New Relic sample script
Merge pull request #18 from erikwebb/patch-1

Clarify product name in New Relic sample script
Merge pull request #17 from erikwebb/slack-integration

Add Slack integration
CL-7721: add some docs about the site-initial-deploy cloud hook.
CL-7721: rename from site-initial-deploy to pre-web-activate.