Label for estimated time in task

[nicolemjohnson]

User needs to know how long the estimated time means.

Group agrees the time entered should be in hours.

Need to check if numbers such as 1.5 can also be entered and if not, this needs to be specified to user.

Acceptance Criteria: There is a label for user to know how the estimated time should be entered in hours. If time can only be entered in whole numbers, the user needs to be notified