Start working on adding PostgreSQL database.
Notes update.
Add ruby-version. Update md files.
Set up database.yml for pg connection. Update notes file.
Fix pgAdmin name.
Create notes dir and rename first note.
Add server setup notes.
Add thin to gemfile.
Fix markdown href syntax.
Update names to ruby style, add templating engine notes.
Add gem 'slim-rails', '~> 2.1.5' gem.
Fix grammar errors.
Beatify.
Add testing framework notes.
Clear rails default comments.
Next sections sketch.
Beatify.
Fix thin to use only development group.
Update notes with guard setting.
Add guard, ruby version.