Remove 'About' timeline

We don't need it just now so remove it.
Change Portfolio to Showreel

Which is more relevant to the services we provide.
Add new header image

Which is more appropriate to our services.
Replace contact form with contact details
Increase subheading font size

It looked too small before.
Update 'Services' descriptions
Update 'Team' section and remove demo text
Add CNAME file for Github Pages

See:
https://help.github.com/articles/tips-for-configuring-an-a-record-with-your-dns-provider/