How do I handle a long gap on my résumé?, accounts payable clerk here

My résumé shows a gap from a layoff and some health issues. I have been trying to stay organised about it. I have done some volunteering and a course during that time. How did you handle it on your résumé?

I listed the volunteering and course under the same dates and kept the explanation to a sentence in the cover letter.

I was hired after a 8-month gap. The manager said the skills test mattered more than the dates.