docs (global-event-bus): fix typo this.$q.event (#186)
docs (global-event-bus): fix typo this.$q.event (#186)

fix to this.$q.event to this.$q.events
quasarframework/quasar-framework.org,quasarframework/quasar-framework.org,quasarframework/quasar-framework.org,rstoenescu/quasar-site,rstoenescu/quasar-site,rstoenescu/quasar-site