Revert "Update _config.yml"

This reverts commit 0058bae4e2f5405e40be07266c6a98121fd6afcb.
Revert "Delete CNAME"

This reverts commit b0646ba164e0d6be8684b692e686e2d183ad6e80.
Revert "Update CNAME"

This reverts commit 8a1e88c6e28b540a3fcccf33d6a49f767f91929f.