TF MARKETPLACE - add Get Started page (links to VDC deployment page)

[Vilnite]

• [x] add apps page to website
• [x] pull in content from now.threefold.io

[Vilnite]

Agreed to go with CTA on the bottom of About page:

Please provide text @samtaggart @Sacha96

[Vilnite]

• [ ] add cta button on Home page as well:

[Vilnite]

Will wait a bit on Get Started cta. Need to investigate the user flow here.