Update cumulusci.yml
Update cumulusci.yml

Restore description for custom tasks.

Co-Authored-By: James Estevez <88e6df7548c7c609a1af76182b3f684b38257ef4@salesforce.com>
SalesforceFoundation/HEDAP,SalesforceFoundation/HEDAP,SalesforceFoundation/HEDAP