Added grandcentrix to partners
added gcx icon
Update _config.yml
removed CNAME
Revert "removed CNAME"

This reverts commit d85692033cc8a571b0abb78f5e047ef4f288439c.
Revert "Update _config.yml"

This reverts commit a3c6954f778be87181fc880551042e7fcb979d3a.
Merge pull request #25 from passsy/gh-pages

Added grandcentrix as sponsor