Jill Duggar has mocked her husband Derick's love of donuts with a sweet social media post.To celebrate National Donut Day the mom-of-two shared a fun meme that called on followers to hug a dog and eat a donut when in moments of doubt.Jill added: "@Derickdillard, happy national donut day because I know you'll be finding the free ones!"MORE: Everything you need to know about the Duggar family weddingsWATCH: Duggars explain "courtship"The pair have been married since 2014 and have two sons, Israel,