Update navigation.yml
Update navigation.yml

add inst training

Former-commit-id: 5ffc19d24241c9ce288b9fb2009296d69ad5c882 [formerly 2445b7a4d8f1be7f0b9d8ddd1de6a24aa057a14b]
Former-commit-id: 43de1ef326c2f010abf1ae56cf021fba872fad87
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io