Adds more content
Added introduction to web apps

Fixes #18
GitHub link opens in new page

Fixes #19
Opens Nitrous link correctly

Fixes #20
Adding more intro material

Working towards #17
Added description of parts of app

Fixes #17

Also moves the intro to web app section to after we’ve set up GitHub
and Nitrous.
Adding scaffold section

Fixes #22
Added front-end content

Adding more content
Adding info on styling the app

Fixes #23
Adds image uploads section

Fixes #24
Trying bootstrap

Fixes #28
Blocks changed to code and content escaped

Fixes #31
added extra code blocks

Fixed missing code blocks and corrected alignment of ‘carrierwave’
Adding routing section

Fixes #25
what's next and reveal

Fixes #9
Added 'what's next' and removed old reveal content.
Changes Nitrous signup directions

Fixes #32
Adding custom css file link
Adding custom css file

Fixing heading sizes
Fix font size in CSS

Fixes #33
Add Git/GitHub explanation

Try to give a basic intro to what Git and GitHub are.