Add a CNAME file to support a custom domain

In this case, the domain is www.carpentersblocks.com

I will close issue #91 when I have changed everything else required, mostly just the DNS server settings and the actual namespace in master

Signed-off-by: Cruz Julian Bishop <cruz@techern.com>
Merge pull request #95 from Techern/gh-pages

Add a CNAME file to support a custom domain