To begin using Colabot, install it by clicking the ‘Add to slack’ button.
Colabot will introduce itself to any channel it is added to and will list the commands it can execute. The first time you ask Colabot to execute a command (i.e. /lead John Smith) Colabot will give you a link to connect your Colabo account to it. Clicking on that link automatically connects your Colabo user to Colabot/Slack. Bam! you're done.