Delete header_homepage_13.jpg
Delete header_homepage_13.jpg

Former-commit-id: ab1523a365e2965f85aef2797e4b5faf78a592f6 [formerly ef009762b57e41166d403daa57a6c2174d246a41]
Former-commit-id: 92b28d8a158b7540f3b089c0c1c902346f9213f0
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io