* Add basic header-checking function
* Add Slack notification logic
* Modify Netlify Functions setup
* Rework function logic
* Add missing dependencies
* Remove package-lock.json from Git
* Separate header checking function
* Isolate env check into a separate function
- The netlify.toml file explains how to build this site for production
and deploy previews.
- The Makefile has some commands to make building the site slightly more
user friendly, try typing `make help`.
- The Gemfile includes all the dependencies exported from GitHub Pages.
This site might not need all of the but I don't have the knowledge to
exclude the unused ones.
Signed-off-by: David Calavera <david.calavera@gmail.com>