Update newsletter.md
Update newsletter.md

fix typo and add newsletter name

Former-commit-id: fbaf26c319e831ffb810b7c48fa6a585a496a3fa [formerly 2bfb360c9f498b6a91071e181829c1538988bc82]
Former-commit-id: e45d6b40036eca57e1d6048a092b64867fef17b8
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io