add compile syntax examples upon invalid input
add compile syntax examples upon invalid input

This will reduce friction from the update compile command. Fixes: https://github.com/spark/particle-cli/issues/58

Signed-off-by: Kenneth Lim <9e44d7eb6fcab62e2399c89db54e6ef42f0711a1@gmail.com>

kennethlimcp/particle-cli,spark/particle-cli,kennethlimcp/particle-cli,spark/particle-cli,kennethlimcp/particle-cli,spark/particle-cli,kennethlimcp/particle-cli,spark/particle-cli,spark/particle-cli,kennethlimcp/particle-cli,spark/particle-cli,kennethlimcp/particle-cli