update `cortex deploy` output

[ospillinger]

description

suggest commands to run after running cortex deploy

note: update cortex deploy output in tutorial and docs

motivation

improve command discoverability

design

$ cx deploy

creating classifier api
creating another-classifier api
creating batch-classifier api

status: `cortex get`
api info: `cortex get <api_name>`
api logs: `cortex logs <api_name>`

$ cx deploy

creating classifier api

status: `cortex get`
api info: `cortex get classifier`
api logs: `cortex logs classifier`