When you are filling your personal history, overlapping months are fine. So, you need not mention the 10-day period as "Unemployment." Do not miss out including all the possible months and addresses where you have stayed. Also, be careful of what you answer in the "Mandatory" questions later. There are chances that after submission may once again ask you to fill a Schedule A (IMM5669E) form, which will require to mention the sae details again. So, please retain the copy of what you are filling on the site.
All the best!