Update app-boilerplate.md (#307)
Update app-boilerplate.md (#307)

Typo
rstoenescu/quasar-site,quasarframework/quasar-framework.org,quasarframework/quasar-framework.org,rstoenescu/quasar-site,quasarframework/quasar-framework.org,rstoenescu/quasar-site