Add instructions to say hello in IRC.
Add instructions to say hello in IRC.

mradcliffe/first-time-sprinter-workshop,mradcliffe/first-time-sprinter-workshop,drupal-mentoring/first-time-sprinter-workshop,BrianGilbert/first-time-sprinter-workshop,drupal-mentoring/first-time-sprinter-workshop,BrianGilbert/first-time-sprinter-workshop