Create CNAME
Create CNAME

Former-commit-id: 5a0cb76e0fedfb3d210959a0080859d5ce951c80 [formerly 50dd75ae0cf8f4fd8dde1d3fc9dd28efd86d2c87]
Former-commit-id: 0bfc812d9f337e5c1dcd645fd969f4f33315e7f4
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io