7-month résumé gap, advice? (Atlanta)

I took time out to care for a family member after working as a web developer. I do not usually post, so bear with me. I am not sure how much to explain. What do you say in interviews?

A short, honest line such as 'family caregiving' is enough for most employers. They mostly want to know you are ready now.

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